Because their entire poltical and world view is based on identity politics. They cannot simply say “that joke sucked” and move on, they have to make it into yet another virtue signalling exercise and lecture everyone else because that is the behaviour they associate with being a “good person”.
I’d like to finally finish Majora’s Mask this year, 24 years after I started playing it. The furthest I’ve made it was Ikana Castle, and that was back when I was a kid. My current save file is at the Pirate’s Fortress but I haven’t touched it in over a year. My struggle to complete this game started off as not being very good at it, then I got a bit older it turned into this thing where I didn’t want to finish the game because I didn’t want it to be over and now I’m just so bored of replaying the same bit that every time I attempt another completion I lose interest before I get to the new stuff.