Again what definitions exactly? As our understanding grows definitions will change.

As far as I know the definitions I listed have always been used. We didn't always understand gender dysphoria as well as we do but things progress. Also I while I wouldn't say I agree with you about the acronym I do prefer to use GSM( Gender and Sexual Minorities)

What do you mean?

First off surgery is not the end all be all of being trans. Plenty of trans people don't get surgery and just take hormones. Some don't even transition, surgery or otherwise, for a variety reasons. The defination of being trans is having a gender identity incongruent with your sex assigned at birth. So all those people are still trans. Second dysphoria is the distress one feels from having their gender identity not match their physical sex and characteristics. If those feelings disrupt daily functions then it's a mental illness. However not ever trans person experiences it to such a magnitude or at all necessarily.