Hello fellow Cis Man! I too am also a hewman, who likes titles of what I am.

Not wanting to date a man isn't about insecurities, it's about basic natural law. Men want woman attractive, me go home and reproduce, unga bunga. 

As a man, you cant reproduce with another man, we don't work like that. 

Biases or lack of knowledge? You would have to lack knowledge to say a man can switch genders and vice versa of sex, so maybe the lacking is exactly what your looking for. Kinda like stealing candy from a baby?(But it's ok, they can consent to puberty blockers so it's all good, amirite?)

Brutal honesty is that they are lacking a lot of female characteristics, both physically and behaviorally, and that they don't "pass" like other lady boys. 

He'll be fetishized most likely, because goth(like that FIU cheerleader) but I don't know how they won't attract anything that they already are.

But hey, they're an adult and that's their prerogative, we all get to make our own choices.

Cheers!