They went from the American Dream — to “Death to America.”

Alleged ISIS-loving wannabe terrorists Ibrahim Kayumi, 19, and Emir Balat, 18, grew up with successful immigrant families in idyllic, white-picket-fence suburban Pennsylvania before they tried to detonate IEDs near Gracie Mansion, The Post has learned.

Kayumi’s parents even own a gorgeous, $2.25 million home in scenic Newtown, symbolizing the family attaining the American Dream after arriving from Afghanistan decades ago, records show.

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The Balat family lives about 12 miles away, in a comfortable 3,200-square-foot, two-story house worth a respectable $653,000 in leafy Langhorne, Penn. His parents hailed from Turkey and became naturalized US citizens in 2017, according to Fox News.

“They’ve been nothing but sweet and kind and loving,” a neighbor and family friend of the Balats told The Post on Monday.

“I’m in shock. I love them. I’ve been in their house, they’re always with the tea,” she said, adding of Emir, “I knew him when he was younger. He was just a typical kid shoveling snow, helping. I’m in absolute shock. It’s sad that this is the world we’re in.”

Authorities said the pair — who allegedly pledged alliagance to ISIS after their arrests — appeared to have been radicalized online and plotted to detonate deadly homemade bombs at an anti-Muslim protest outside Gracie Mansion on Saturday afternoon.

“This was a planned attack motivated by extremist ideology and inspired by a violent foreign terrorist organization,” NYPD Commissioner Jessica Tisch said Monday, after Balat and Kayumi were hit with a five-count federal complaint charging them with attempting to provide material support to a foreign terrorist organization and using a weapon of mass destruction.

Kayumi and Balat allegedly traveled from the blissful rows of McMansions in Bucks County to the Big Apple and hurled homemade bombs at racist agitator Jake Lang’s anti-Muslim demonstration outside the mayoral residence on the Upper East Side, where a counter-protest was also taking place Saturday.

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Their journey into alleged terror shows every sign of contrasting with the pair’s quiet, even well-to-do, upbringing a stone’s throw over New Jersey’s border, as recounted by neighbors, school administrators and records.

“This is not the kind of place you think of when you think Islamic terror,” one neighbor of the Kalumi family, Kathy, said Monday. “This is Americana, here. It’s middle class, but in the best way.

“I’m not sure where the kid went wrong, but he definitely didn’t pick it up in this neighborhood,” she said. “But you see that a lot, don’t you, the worst people coming from the nicest places. I guess what indoctrinates you online has nothing to do with location.”

Balat still attended Neshaminy High School in Middletown Township, Penn, as a senior when he committed the alleged terrorist act, and was just three credits short of graduating, his attorney said.

Here’s the latest on the bombs thrown outside Gracie Mansion

• Self-radicalized ISIS protesters used explosive called ‘Mother of Satan’ inside bombs thrown at Gracie Mansion protest: sources
• Devices hurled at Gracie Mansion protest determined to be highly dangerous IED capable of ‘serious injury or death’: NYPD
• ISIS-inspired NYC bomb throwers hoped attack would be deadlier than Boston Marathon bombing: feds
• NYC bomb attack suspects launched slew of chilling ISIS-inspired slogans and threats after their arrest

“We understand that events receiving significant media attention can raise questions for families, staff, and students,” the district’s superintendent, Jason Bowman, wrote in a letter to the school community, Gothamist reported. “At this time, there is no information indicating any concerns related to our schools.”

Mehmet Isik, a Turkish community liaison in Balat’s neighborhood of Levittown, described Balat’s father as a good member of the community.

“He’s a member of the congregation. He’s a good man, a good member of the community. I’ve known him 25, 30 years,” Isik said.

“I’m as shocked as anyone about this. I’ve seen (Emir Balat). He was always respectable, always nice. It’s really surprising.”

Both Balat and Kayumi are US citizens with immigrant parents, law enforcement sources said.

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Kayumi’s parents became naturalized citizens between 2004 and 2009 after leaving war-torn Afghanistan, Fox News reported.

They appear to own a convenience store, records show.

The massive Kayumi family home in the Reserve at Makefield – an upper-middle-class, mostly white subdivision surrounded by farmland – was built in 2018, according to records.

Kayumi graduated in 2024 from Newtown’s Council Rock High School North, a school district rep said.

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“At this time, there is no information indicating any threat or connection to Council Rock schools,” Andrew Sanko, the school’s superintendent, said in a statement.

Kayumi’s father Khayer Kayumi sounded rattled during a brief conversation with The Post.

“I’m in the middle of some work with my attorney. I cannot talk at the moment. I’m talking with my attorney. I have no time to talk right now. Thank you, sir,” Khayer Kayumi said.

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The pair appear to have left their sleepy enclave – and unremarkable upbringings – behind Saturday morning, court documents state.

A vehicle registered to one of Balat’s family members was spotted by a license plate reader driving toward upper Manhattan along the George Washington Bridge at roughly 11:35 a.m., the documents state.

Kayumi’s mother also filed a missing persons report in Pennsylvania saying that she last saw him at home about 10:30 a.m. that day, the documents reveal.

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An hour after the car passed into New York City, Balat and Kayumi attended a counter-protest against right-wing nut Jake Lang’s anti-Muslim protest outside Gracie Mansion, police and prosecutors said.

Balat allegedly hurled a homemade bomb packed with a volatile explosive favored by international terrorists known as “Mother of Satan,” prosecutors said. Kayumi was pictured handing Balat a second bomb, documents allege.

Thankfully, neither bomb exploded.

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Police quickly arrested the pair, who just as swiftly made alleged confessions that betrayed radical religious motivations.

While their upbringing was Americana, it appears their online habits acquainted them with radical Islamist hate.

Kayumi admitted he had watched ISIS propaganda on his phone, documents state.

Sources with knowledge of the investigation told The Post that both suspects had traveled overseas in recent years, including Istanbul, Turkey – a known hotspot for ISIS training.

Balat held up his right index finger Monday as he was escorted from a police precinct – the universal salute for the ISIS terror group.