People love to call veganism ‘privileged,’ while conveniently ignoring the fact that the only reason animal products are even close to being accessible for the average consumer is because they’re factory farmed, slaughtered and packed by grossly underpaid labourers working in dangerous conditions, and then massively subsidised by all of our taxes.
You’re referring to outliers.
If you care about animals, you don’t move to a “desert” where you don’t have a supply of non-animal-based food. That’s the cost of trying to give a shit. You don’t get to be an opportunistic predator, you don’t practice it only when it’s convenient with your business/career plan.
For most people this isn’t even an issue, but carnists love to glom onto the exceptions as if most humans are living on a space station surrounded by asteroid cattle.