Most people going vegan are doing this for ethical reasons, which is the opposite of subjective morality, since the entire point of ethics is, that it does not allow subjective morality.

My point is, that everything about veganism on Lemmy (even in vegan communities) keeps getting downvoted for “too preachy”, even though it often just points out facts, while the same people are literally preaching the Word Of Richard Stallman.

Not really obvious to me. I’m bashing corporate brands as a “morally driven life choice” as well.