Why do people cancel everyone

Cancel culture is sometimes insane, like why are we cancelling people who just like SOME darker things, not offensive, not hurting anyone, but like things that are so a non-issue that you have to wonder if these people judging have ever EVER experienced any emotions other than positivity or are like "just journal it always helps me🥺" Sorry people have issues Susan, but if they aren't hurting or being horrible to other people why are you harassing them, for example, 

when I see people posting about a media that has darker themes that isn't even necessarily offensive to anyone in particular and then there's always someone in the comments calling them a bad person for interacting with it, and it's usually hypersensitive Christians too like c'mon guys you're not spreading love you're spreading judgement.

Let's focus on the actual bad people instead of people having a hobby you don't like or a interest that's not conventional...