I am talking about capitalist states exploiting animal bodies

you are demonstrably not.

you have said to me this

Why is eating deer the first thing to come to mind for that? Just kill the deer and be done with it if you have to do it that way. Imagine calling pest control and finding them munching on bugs in your basement lol

which is equating deer with vermin,

and this

Burn the corpses or something. Quit making animal bodies a "resource" to be exploited. That is how eg. ivory poaching is dealt with.

The solution to everything isn't creating a market out of it to exploit yet more profit

which is unrelated to the idea of solving the immediate problem of industrialized urban development creating unsustainable conditions for deer population explosion and then extinction, which requires ecological management of some sort to save the deer themselves. yes, that's because of a problem caused by capitalism, but nobody is talking about that. you and i are not discussing whether capitalism ethically creates the means and conditions for handling that ecological problem: it obviously does not. you're also not making an argument about the socioeconomics of the hunting industry, which absolutely exists, and serves people who are far far crueler to animals than the very wide set of people that would prefer to use the deer rather than kill and burn it.

i ask this as a general point to you, a member of this communist website to ponder: do you want to feel proud for owning me morally, or do you want to actually try to convince people that they shouldn't eat the deer, etc.? because you're not going to convince even good faith people of whatever you're arguing when you form your arguments like this. i might agree with all or most of your thoughts, but it's hard to tell when you're just angrily shouting at people.

pushing propaganda that we should kill deer because ___ and that not using their body parts is wrong because ___

insidious propaganda such as: "maybe we should avoid ecological collapse" and "maybe we should actually do something useful with the bodies instead of just leaving them to rot"

If those blanks are filled in with indigenous beliefs but are actually carried out by white people and corporations, then we've got a problem

it is actually illegal for white people to practice indigenous ecology - you apparently

Also that the ivory trade would be marginally okay if the hunters and poachers ate a little elephant meat before sawing off its tusks?

literally nobody said that

The elephant is dead no matter what.

And the deer is dead no matter what. Why not use the body for something useful?