Cultural appropriation is something like McDonald’s advertising a new Indian burger and it’s just a beefburger with some chillies in it, i.e. someone’s attempting to gain from a bastardised caracature of the culture that wouldn’t be something someone from that culture would participate in. Right wing pundits intentionally misrepresented it as things like eating a traditional dish from another culture to make it sound stupid so people would dismiss it, and then people who’d only heard the misrepresentation but wanted to do the right thing or at least appear to be doing the right thing started acting like it was immoral to participate in any culture you weren’t born into.