On the basis of their being conscious feeling thinking emotional beings I assert that there is no moral difference between violating the bodily autonomy of a non-human animal and a human. Given a no alternative hypothetical it's fair to give preference for who to spare, but this is not the same as willful unnecessary violence and killing.
If it's false equivalency, demonstrate why it is permissible to kill non humans but not even permissible to punch humans in the face. What is the morally relevant difference? If you could apply that difference to a human, would you then justify doing to them all the things we do to animals?
Your examples don't have victims, this one does.
Foundationally we already disagree, as I'm a moral objectivist. To assert moral subjectivity is to assert that moral progress does not exist. But with your edit your argument is actually now even worse IMO, because instead of focusing on a moral relativist position you're now basically saying morality=culture/law. i.e., since you have no say in what another society does without disrupting their agreed practice, all their actions are permissible. Bigotry is permissible. Slavery is permissible, hangings are permissible, genocide is permissible, etc, just so long as it simultaneously does not occur within proximity to you and rejects your preference. I think you are tolerant of intolerance.