> There is a good argument to be made that in the West we should eat less meat, but that doesn't mean removing it completely: it is harder to make a balanced vegan diet, so for most people that would mean a less healthy outcome that just eating a moderate amount of meat.

You're making something of a jump there - not eating meat equates to a vegetarian diet, not a vegan diet. One can argue about the merits of a vegan diet over a vegetarian one, but a vegetarian, non-vegan diet is already a big step up over a meat-heavy one, and a vegetarian diet including eggs and dairy doesn't really have any challenges in being balanced/healthy compared to a moderate-meat diet.