GothAnne I don't claim to be anything like an expert on transgenderism (and I have purposely not mentioned whether I have trans people as friends/family).
What I do know a fair bit about though, is what it is to be a woman in a patriarchal society, and thereby to be oppressed and dictated to by a hierarchy based on biological sex via the mechanism of the gender binary. (My issue is with the socially constructed gender binary, not with the state of being of biological sex. Bit like how people of colour take issue with the social construction of race but not with the physical manifestations of human ethnicity.)
I don't wish to dictate to transgender people - I can imagine some of the difficulties they encounter and how painful many aspects of their lives could be. I think they too suffer due to the strict gender binary - I see this as something trans people have in common with radical feminists. I don't agree with surgery, but that is a personal choice that only the individual can make.
My only issue is that some MTF trans people claim to be women with the same status and state of being as biological women. As a biological woman, I think I have the right to have an opinion on that.