I get everything you wrote, but transphobes know this is their weakness. They can laugh at and insult crossdressers - easy targets. But they know if they ever met a ts this hot, they would have a serious problem saying no, and probably wouldn't.
The issue has always been if you are passable as a shemale, not being trans in and of it self. Passable trans are not seen as threatening by most, many don't even know they are shemales. It is called pretty privilege(or nature) and men and women that are good looking can get away with far more than an average or ugly person could, by a lot. If trans truly want to make head way they just need to be passable enough. I am not into even passable trans/shemales mayself(straight), but I would not care if this shemale fucked my girlfriend. This shemale is so passable that I would consider her fucking my girl the same as her fucking another girl(lesbian). . Lesbian and bisexual woman are allowed in female spaces, even though they are attracted to girls still. You can't tell me bi woman and lesbians don't get turned on being in sauna or spa with woman if they find them attractive, but no one kicks them out. So even if shamales are attracted to girls too, that is not a reason to not let them in. If you kick shemales out, you have to kick bi-sexual or lesbian women out by that logic.
This kind of girl is absolutely HORRIFYING to trans haters. They know DEEP DOWN there is NO WAY males could refuse, and NO WAY genetic females could compete. Trans girls who keep their cocks are the ultimate sexual creatures, cannot get pregnant, and are always horny. They improve over time as they become more comfortable with themselves and everyone around them, unlike the haters, who bring nothing but fear and loathing around with them wherever they go. Too bad. Fuck 'em.