What if its a hot man that looks more like a hot woman? This is the only reason why I think you're being dogmatic. Such people exist, and you're not really taking the possibility into account. You're just assuming that your named sexuality trumps all. I don't think its so clear cut is all.
I've hung out with drag queens and transsexuals enough to know that no matter how they look, they just don't do it for me. There are biological differences between men and women that are a factor in my attraction to them. Women feel taste and smell differently to men. But even without that, going just on looks alone it's just not something that does it for me. A good example would be when I'm feeling horny and search for a good porno to crack one off to. My porn tastes are actually quite wide so long as there are women. Male/female, female/female, male/female/female etc. I don't go for transsexual porn or pre-op porn. I like natural born women. But every now and then I'll load a random porno without realising one of the performers is a transsexual. I've actually seen some transsexuals you really couldn't tell at first glance used to be men, and are presented in ways I usually find appealing in women, but some reason I had little interest in them but couldn't put my finger on why exactly. Looking closer I begin to pick out certain things. The arse looks weird. The skin looks strange. The shoulders and hips are odd. The hands are weird. The bone structure is off. So I wouldn't say it's something that I'm not taking into account, there are just certain features, if that's the right word, that attract me which women process that men, and those who used to be men, just flat out don't.
Thinking more about it, an exception may be transsexuals who begin hormone therapy before or on the cusp of puberty. Kim Petras is an example off the top of my head. She underwent surgery at 16 but had been on a course of female hormones for a number of years beforehand (I believe she began at 12). The result was that she physically developed more like a woman than a man. In my personal life I've never known a transsexual to begin the hormonal process so early, so whether or not every instinct I have would be saying this is a woman, I couldn't say.
I think I am bi-curious. I generally prefer men, although I do get quite turned on by some women.
I have no idea how I would approach a woman and flirt with her though ....
"Can I touch your boobs, because I'm bored of my own?" doesn't sound like it would sweep a lady off her feet
It's a bitch ain't it.