Most serious vegans understand something about the differential in agency that comes with even relative poverty. The books that sort of founded the movement take this into account.
And there is a LOT of relative poverty in places you don’t normally expect, especially with housing costs as they are around most of the Capitalist world.
Easy to say when you have choices in where to shop. Lack of transportation and odd work schedules destroy that Real Quick. As does rural life, or life in an urban food desert.
There is more to poverty than lack of money - there is also frequently a lack of time away from work for serious food preparation. And idk if you’ve looked at vegan processed food lately but uh… The opposite holds true about their price.
No one can survive on crock pot beans alone.
Once again, 100 companies are responsible for how much of the emissions? Your consumer choices are not a Revolution that will save the world. Consumer choice is a poor substitute for activism that has been sold to you by your Masters.