OK, I've already said that the "being a vegan is totes like being Black, gay or Muslim" thing is both ridiculous and offensive.
But I am now agog at the "eating meat is rape and slavery" thing. Ridiculous and offensive barely begins to describe it. It also posits veganism as a kind of personal purity thing, the highest, most ethical point of human existence without acknowledging that we all make choices, every day, about how we live our lives, and all of those choices are imperfect in some way. And sure we could improve, eat less meat, eat meat which has had a good life and all the rest of it, but leading an ethical life is a whole thing, and what I choose to focus on may well be different to what others do. My attempts at ethical choices are about what makes a difference in the world, rather than what keeps me "pure".
Someone upthread wrote about their preachy vegan friend who still is a frequent flier, and who thus almost certainly is more responsible for the destruction of animal life - indirectly through climate change, and the loss of habitat, but responsible all the same - than I could hope to emulate if I ate nothing but panda sausages from now until I die. (I fly maybe once a decade, and have arranged my life so that I don't have to drive a car, specifically for ethical and environmental reasons.)
And take palm oil. I do sometimes eat things with palm oil in them, but I will always choose the non-palm alternative if there is one (and I always look), because I rather like orang-utans. I email the companies who make the products I love which have palm oil in them, urging them to find an alternative and praising them when they do, and I have even written to the Bank of England to ask that they not replace the tallow in the new fiver with palm oil, because I think it would be unethical.
I am most emphatically not saying that there's no point in being a vegan unless you also refuse to fly, refuse to drive a car, etc etc - anything anyone does to make the world a little better is a good thing, even if it's not everything and perfect - but I am saying that the vegan/not vegan world isn't divided on a cruel/not cruel axis which perfectly overlaps it. And I will continue to be revolted by a movement that equates cows to people. Are they deserving of compassion? Yes. But they aren't people.