Yeah you're probably right, but I think the point should should be able to stand on it's merits rather than who's saying it. But since you are right, here's what Alex Hershaft says about it, and I agree with him: "The main criticism is that we're making light of the sacrifice of the Holocaust, and of course, we're not. Far from it. We're honoring it by trying to draw some lessons for humanity"

Doing something terrible is bad (understatement in this case), but not learning from it is even worse.

I think it's also important to recognize the vast scale of animal agriculture: every year we kill more animals than the total number of humans that have ever existed. That's a mind boggling amount of animals experiencing massive injustice, and in my mind it makes most human-human injustices seem small. Even if you think that animals have 1% of the moral worth humans have it still outweighs human injustices (i read somebody do the math and iirc it holds up even for much smaller percentages. I wish I'd saved it)