There's not all that much of the latter - we've only even had the word "bacon" once (now twice), and not used in a weaponised manner.
I can't fathom why vegans whinge about it so much, (I suspect there's a "protesteth too much" thing is in force and it works as a kind of validation).
But here's some what qualifies as the former:
i) Humans are multiplying faster than ever
ii) Human population shows signs of exponential growth leading to inevitable catastrophe
iii) It is the fast-growing parts of the human population which are going to tip us into environmental collapse
While, being fair,
cheesethief's post above was pretty clearly in jest, these tropes recur in a lot of threads about the environment.