Anddd that’s proving his point. Assuming you’re not a troll making a satirical post, this is pretty much textbook toxic behavior. You respond with aggression when instead you could be nice. People respond with an equal and opposite reaction so when you come out swinging you lose an opportunity where you could educate them instead of spreading more hate.
Reminds me of a funny story where I was informed that transgendered[0] isn't a word. And in fact you can see a definition on Urban dictionary where someone has said it is "a word that doesn't exist". It turns out that while the word was once used widely it has recently become forbidden for grammatical reasons.
It's not surprising this debate is so broken when basic terms aren't even constant.