Because apparently some of you liberals forgot.
Your personal consumption habits are not politics but aesthetics.
I don't care if you eat hamburgers every meal and wash it down with a nice refreshing smoke of crack - if you want a world where workers call the shots - then you're a comrade of mine.
This isn't really a good point imo, there's plenty of things wrong with how the majority of the world does things. It's fair to criticize, IMO.
I do agree with this point to a certain extent, though not all vegans are white leftists. I do think that eventually animal products should be and will be phased out, but this isn't an exclusively Marxist forum.