We have to do it. Some of us have to do it in different ways. Doing small things where you can is all well and good but literally none of us are making a single impact in capitalism by making different choices about how we're forced to participate in it. Focus on tearing it down together rather than picking apart individual choices because those individual choices still result in participating in capitalism.
yeah that's much better. it doesn't lump all vegans into group and a demonize them, and limits it to judgmental people.
edit: i still disagree with the point you're making, but at least it doesn't just immediately attack all vegans as somehow absolving capitalism for choosing not to eat animals/dairy