I’m not, and its weird that that’s your take. I’m pointing out that making a subject verboten and/or trying to shield them from it rarely works out. You can either be an active participant in your child’s education about something, or you are willingly outsourcing that education to someone else. Someone else being the likely worst parts of the internet, their dip shit friends that also probably learned a lot from the worst parts of the internet, or other adults that may or may not have their best interests in mind. Politics, racism, sex ed, drugs, alcohol, all of them. It’s been my experience that the more you resist or try to suppress a subject, the more interested a kid gets about it.
I would also add, that if you’re seeing your kid using extreme political language or memes, it’s something they are being exposed to regularly. Your home is the likeliest source, and while parents that think they do a good job hiding their vices, kids are very perceptive and will idolize and emulate those vices because their favorite people do them. A kid won’t hear let’s go Brandon in passing and latch onto it. A kid hearing his dad saying it and all his friends high fiving about it will get their attention.