One of the things "morals" is is a negotiation with society about what should be construed as blameworthy. Potential participants in that negotiation may have different treatment without, as you said, it "rest[ing] completely on logical fallacies," which is why I brought it up.

I am not saying this makes up the entirety of my moral system, and I am explicitly (here) saying that a naive application does not.

Historically, that seems pretty common