Not all portrayals need to be dramatic. Modern comedies have also evolved their treatment of blended dynamics, moving from simple schadenfreude to cathartic chaos.
Comedies have perhaps evolved the most. In the 90s, films like Stepmom treated the blended dynamic as a tear-jerker about terminal illness and competition. Today, comedies tackle the absurdity of the merging lives without making the step-parent the villain. CheatingMommy - Venus Valencia - Stepmom Makes ...