This sounds really difficult, JazzyContemporaneousNotes , I'm sorry you're going through this with your DS.
It looks like he too has misunderstood what intersectionality is🙄
It's often said that you can't reason people out of irrationality, which is fine, you can just walk away from them and their opinions, but not when it's your own DS who you thought was more analytical.
But I'm thinking back to when I was young and I think I took extreme positions just because they were the opposite of my parents', I didn't even believe them all that much, but I was damned if I was going to agree with them!
Maybe he goes away and has quiet thinks on his own; and there's more and more support for your 'side' these days, so it's not just Mum who has those sorts of beliefs.
It must be hard, so 