I think the majority of the first part of what you've said is mostly captured in "you act like you think you can teach others but they can't teach you", so I'll respond to that first:

I am open to being taught, I just expect something better than silliness like "I can care for animals and also eat them for pleasure" when it comes to what I find convincing. Please, by all means, teach me something. I am genuinely open to it. If you read through the many conversations I've had on this topic in the past, you'll also find thorough explanations as to precisely why I find these carnist arguments so tired and ineffective. Just because I am once again, for the umpteenth time, saying that people who claim to care for animal welfare while actively harming animals are hypocrites doesn't mean I'm close-minded, it just means that this delusion is ubiquitous.

> many of your critiques tend toward simplistic snark

This is probably more true than I would like to admit, but in my defense I am arguing for what I know to be the ending of the subjugation of trillions of sentient creatures, so forgive me for being _extremely_ upset when I need to convince people of what is an obvious truth: one cannot claim to value animal welfare while participating in the unnecessary abuse of those animals.

> even when other vegetarians and vegans are telling you that you're hurting the cause

Being a vegan or vegetarian does not make someone more likely to know what is good for the cause. Knowing what makes an effective social movement is a completely different area of knowledge, so the fact that other folks who eat fewer or no animals disagree with my strategy doesn't say much.