The 21st century has effectively retired this trope. In films like The Kids Are All Right (2010), the stepparent (Mark Ruffalo’s Paul) isn't evil; he is simply an interloper by accident. He is a well-meaning sperm donor whose arrival destabilizes a functioning lesbian-led family. He isn't a monster; he is a disruption. The conflict is not about malice, but about belonging.
: Movies like Yours, Mine and Ours and Stepmom MomIsHorny - Venus Valencia - Help Me Stepmom- ...