Why does "need" have anything to do with one's diet? Cheese can be sustainably produced, and as an aside it tastes fabulous (I encourage you to try it).

I have zero intention to transition to a plant-only diet (we almost all already have "plant-based" diets, that term is offensively transparent marketing hand-waving for "vegetarian"). However, I certainly don't look down upon anyone for their individual dietary choices.

I don't really care for that term either but I used it because "vegan" has become such a loaded term in these kind of online debates, probably due to it often coming from the animal welfare angle and all sorts of silly hypothetical questions being offered from both sides. As for the cheese, I'll pass, you can keep it.