I think it's much more sinister than that.
The average person -- even if vegan -- supports the growth and expansion of a society that by definition does so at the expense of natural land.
What happens to all of those animals? A: they die. As do all future generations in that area.
If I had one wish for humanity, it would be less use of space. This cannot be achieved by putting everyone in apartments, because they will still need farmland, roads, hospitals, schools, shopping malls, doctor's offices, irrigation clinics, parking lots, bars and restaurants, libraries and public toilets.
The posh/non-posh thing seems to have more to do with who's "in" the little elite media club and who's not. Mostly corporate stooges probably. But metal has always hated poseurs, and people who rage about hunting while happily signing the next bill to shift 300,000 acres of green belt into condominiums are total hypocrite poseurs.