I agree with billie eilish
I believe eating meat to be inherently wrong based on our human moral standards that killing is wrong. If killing is inherently wrong then eating meat is wrong since sentient life has to be killed/die in order to be consumed. Finding a justification for the wrong act of killing doesn't make that act less wrong because that action of killing is already inherently wrong. Just because there are species that evolved/developed eating meat(including us) does not make it morally sound, it just means morally wrong behaviors are accepted or seen as justified as a part of survival. The consequence of killing doesn't change only the exception we use to justify it. Also, it's weird to use indigenous communities as a shield for one's own moral discomfort, especially if one does not come from those communities. I understand there are: historical, critical, and cultural differences between indigenous practices and realities versus the western farming industrial complex. That being said...I think it's also weird to not include indigenous in ethical/moral critiques while considering their realities because that logic further separates them from their shared humanity. There are many indigenous vegans from varying communities that are doing the work to integrate veganism or plant-based diets into their communities many of which are traditionally (largely) plant-based anyways.
Additionally, those that live in environments that aren't optimal for veganism for plant-based eating (those groups that make up a tiny portion of the world population) are not the target audience or the problem; it's the standard western consumer and the systems forced onto them.