My brother is much younger than me and his beliefs about sex and gender differ a lot from mine. Despite this, we are able to express our different beliefs and respect each other. Young and woke as he is, he accepts the internal consistency of my beliefs. It's made me wonder why this isn't typical.
I will use whatever pronouns anyone wants (which may be why it's easier), but I don't believe anyone can change their sex. My siblings (mid 20s to 30s feel the same but don't dare voice it). Ironically, despite not believing transwomen are women, I ended up as the transgender lead in my last job (NHS male forensic services). I actually just think people should have access to clothes/cosmetics that make them feel comfortable.
It's basically made me wonder why things necessarily have to be so acrimonious. You can give trans people what they need to live in their preferred gender because the world probably won't catch up fast enough to just be who they are as their anatomical gender. Accepting that doesn't mean accepting people ARE the gender they say they are.