A Connecticut couple says their 16-year-old son was booted from his ritzy liberal prep school because he expressed conservative political views.

Theodore and Sonia Mancini of West Hartford told The Post on Friday that their son, Michael, was cast as an outlier at Cheshire Academy – the state’s oldest boarding school, founded in 1794 – after a disagreement in his English class regarding transgenderism in William Shakespeare’s “Twelfth Night.”

Michael disagreed with classmates who claimed Shakespeare was portraying transgender individuals in a positive light, saying “that kind of behavior was frowned upon” until the 1900s, his parents said.

He was then verbally attacked by two students, setting off a chain of events that led to his expulsion Tuesday, Theodore Mancini said.

“It was sold as a place that allowed open discussions with all points of view and that everyone would be given equal treatment,” Mancini told The Post of the school, which charges $62,000 a year for tuition and boarding.

“And that’s not what it ended up being. [Michael] got cited for facts he brought up, and he got cited for a private conversation he had with a teacher.”

In a private chat with his teacher after class, their discussion then turned to homosexuality as it pertained to Shakespeare’s classic play. Michael told the teacher he was “fine with homosexuals being married” but opposed churches or religious organizations conducting the ceremonies because it runs counter to their teachings, according to the family’s notice of claim, a precursor to a lawsuit.

Then, while at a mandatory Martin Luther King workshop at the school, Michael, who is white, made what he thought to be a joke when asked by a teacher to state something obvious about his identity.

“Obviously I am black,” Michael said, prompting students in the class to laugh, according to the notice of claim.

Michael was suspended for five days because of his “politically incorrect views,” the document states. He was then expelled from the school after his father launched a Web site detailing his beef with the private school, which recruited his son to play football in July 2018.

“Michael is not the only kid at Cheshire who has these pints of view, he’s just the only kid there who refuses to kowtow to these people,” Theodore Mancini said. “It was a simply discussion in English class that was right out of established publications, and they claimed he harassed them for citing facts. They tried to get him to say he was wrong, but he wasn’t. He had the facts.”

The family’s lawyer, Jamie Sullivan, said a lawsuit seeking damages will be filed against the school next week, alleging Michael was essentially bullied due to his conservative views.

“It’s a precious thing to have competing ideas,” Sullivan told The Post. “We should have a healthy fear of an autocratic, monolithic government or school.”

Sullivan said the family is seeking an injunction to have Michael reinstated at the school, as well as monetary damages.

The notice of claim, which names its head of school and dean as defendants, alleges negligent misrepresentation and defamation. It also claims that Cheshire breached its contract with the family by not being accepting of Michael’s values.

Reps from the school declined to comment, but Head of School Julie Anderson told parents in a letter that the student — whom she did not identify — was expelled after a “fair process,” according to New Haven Register.

“Contrary to what you may have read, our decision was not based on an opposition to political dialogue,” the letter read. “We will take steps to defend the good name and reputation of CA, and will continue to work with legal counsel through this unfortunate episode.”