I feel like we’re not even having the same conversation here. I explicitly object to the argument that medical measures are necessary to validate a trans concept. You say I’m focusing too much on that, then explain that being transracial isn’t valid because of exactly that.

Saying you can’t make your body change in the various ways you list invalidates being transgender - you can’t make your body naturally produce the hormones you want, you have to artificially take them. But again, I don’t think that’s relevant - if you’re trans then you’ve always been trans, you just might not have understood it. To me the transracial concept seems equally valid, and I don’t see your biological objections differentiating them. I mean, you’re not even being accurate - people do modify themselves in all the ways you list. Cosmetic surgery and body mods are more than a $100 billion/year industry in the US alone. I just don’t see how you’re making a point.