If only there was some kind of warning system or content moderation put in place that viewers who refuse to engage in certain media could see prior to viewing said media. Almost like some kind of warning prior to the showing of media. something likeeeeeee:
(In case it's not obvious, I'm being sarcastic; there very often is a BIG warning prior to the start of a movie.)
If all else fails? Google it. "Does _______ contain [themes, language, content I don't like???] Are there things on my Nope List that I need to avoid?" and reading what comes up and making a judgment call.
doesthedogdie.com is a good one.
Don't project the responsibility of managing your experiences onto someone else.