Yes, Cuck is a real movie. It grossed (I swear I'm not making this up) ZERO DOLLARS at the box office.
The best way I can describe it is: imagine if some soyboy who spends all day on Reddit watched Joker and American History X then decided to do a mishmash of both movies but with current year politics. You can imagine the rest....yup, muh alt-right recruitment/radicalization.
We have the unofficial sequel Karen. Eagerly awaiting the next installment, Simp.