Yeah, I'm vegan and still recognize the need for deer hunting in the US (and anywhere else where all their natural predators have been eliminated). I don't know of any other effective method for controlling their population when no other species exists to do it. I would be totally open to reintroducing wolves, bears, big cats etc to areas where they existed historically, but I just don't see enough popular support growing for that that it seems likely to happen anytime soon. People like their meat too much and wild predators kill free ranging livestock, plus I suspect most people are not going to want to worry about encounters while they're out in nature (see my link below for how things have been going with the red wolf re-introduction to North Carolina, US). I mean I'm an animal lover and it still makes me a tiny bit nervous when I go out into bear country in the wild parts of my state (not that that would stop me from supporting re-introduction). Lots of people are ignorant and don't give a shit about harming ecology if it benefits them in some way.

https://spectrumlocalnews.com/nc/charlotte/news/2023/09/04/endangered-red-wolves-need-space-to-stay-wild--but-there-s-another-predator-in-the-way---humans