I dunno about normative claims, I was just saying I think a lot of ethical vegans (i.e. actual vegans) disagree with dumpster diving for non human meat because they see it similar to corpse desecration.

I'm personally more sympathetic to the idea that bodies are just materials once someone is done with them but I know that this is a fringe view and it deeply upsets some people to consider the bodies of the dead disturbed in any way. At the same time I think there are perverse incentives there to be careful of and that normalising continued use of animal products may bleed over into stuff like "cheat days" so I remain theoretically sympathetic.