Interesting topic and one that has many thoughts. I agree most probably 90+% of crossdressers identify that they are heterosexuals. Human sexuality and sexual preferences are not always so black and white clear. Through life you will find that a number of heterosexual males and females have 'experimented' with homosexuality. I believe this experimentation may be higher among females. I think among those who identify as bi-sexual one will see more genetic females do than males. For males it's going to be more straight forward, straight or gay with a smaller percentage as bi-sexual or bi-curious in the classic sense. IMO with females it will be more straight, then a good sum as bi-sexual or bi-curious and very few as lesbian.
Toss in crossdressing and mix in drag queens and many regular day to day persons think both are the same. But crossdressers and drag queens are often quite different.
1: Drag Queens are probably 99% homosexual and are very clear to make sure all know this about them. They have a femme side but often it's a caricature of an embellished female form, used to attract men, some straight men who are looking for a fling, some bi-sexual males and most gay males who are into overtly feminine drag queens. But also many or most drag queens use this as a profession, for these men in drag shows and drag based media.
2: Crossdressers are different in that we feel an affinity to our female side and as such we use crossdressing as an outlet for pleasure be it simple to be it sexual. We may feel a need to crossdress to keep our personal sanity as often many of us if we are denied or deny ourselves (most often out of fear or guilt) of this feminine/crossdressing outlet will likely grow ever more angry, upset, miserable and even depressed. These feelings from denial may be very dangerous to us as persons as we may act in ways of unclear thoughts to carry out dangerous acts on ourselves.
For most any of us here, if we are unable to crossdress for a significant period of time I dare say we all go down a similar path of such ill feelings. When we are then able to dress up we like an emotional explosion feel immense relief and pleasure to let this ever present feminine side to us be out and be girly. If you have been denied or deny yourself as a cder then this resultant cding session is like Christmas to us, especially if getting the opportunity to dress is based on getting some new clothes, shoes, make up etc. I know for me my nerves are wild and my hands almost shake as I play with new things for myself a Lacey especially if I have not been able to dress as her for a while.
So back to how this affects sexuality. IMO humans are a very complex sexual animal. Yes, observed in life we have seen homosexuality among other animals. But humans have a much more sophisticated sexuality and adding our inborn nature to each of us and yes social conditioning adds IMO more than just vanilla and chocolate sexuality flavours for us as human beings.
Sex is not just for procreation for humans. Even gays can procreate, it does not take being only hetero for a man and a woman to have sex to make a child. A gay man can impregnate a woman if he chooses to still want a child even though he is wired as gay. A lesbian can still have sex with a man if she wishes to get pregnant even if she only desires to have relationships of other females.
So sex for quote, "knocking a woman up." is different than sexuality for what is, for those who prefer to have a sexual and maybe more meaningful relationship with. Humans are very more advanced and varied than most if not all other animals in this regard.
Society is progressing to understand human sexuality and by our progressive nature able to study and more so freely discuss human sexuality in ways we were not so able too oh 20-30-50-100+ years ago.
My life has seen me look at myself as a cder and feelings that I have, as time matures me and hopefully with gained intelligence of my own self. I have my life identified myself as heterosexual, been married had female relations. I've never had any male/male sexual desires nor general inclinations. I look at and relate to dudes while I'm a dude as any oh hetero male will.
I've noticed things about me en femme though as I get older and especially over the last year for some reason my desire to be a better looking fully dressed cder as Lacey. From better makeup application to finding hair styles in my wig choices that really suit who I am en femme to building and wearing a more varied wardrobe, one from from mild to oh la la la, wild.
I have also been Youtube watching more and more other crossdesser videos and transgender videos. My sexuality has seemed to become more noticeably for me fluid. I still as a man look at attractive women to me as any other hetero male will (though my cder side see them often for the cloths, shoes,hair and makeup they wear
) but I have noticed that I may find attractive trans girls and well turned cders interesting too. Both in how I see them from my regular male's POV and from my en femme POV. As Lacey I see genetic females as attractive but also some trans girls and well turned cders as sexually interesting too. These are thoughts I've not normally noticed in my past. But then again before things like YouTube as such one did not see much of trans and cding girls, unless you bought magazines and maybe rented videos.
But oddly as Lacey, dressed up as best I can with make up and hair I have found my mind wanders at times about being with a gentleman. I will occasionally think about what it may be like as an attractive gal with a real gentleman being with me, wining and dining me showing an interest in me. It's TOTALLY ODD FOR ME! I have ZERO sexual interest in other men when I'm in drab mode, none, nadda. But en femme these feelings have and do cross my mind.
I have only recently begun to learn about terms like pan-sexuality and poly-sexuality.
Pan-sexual: can be attracted to any and all persons regardless of sex, gender, or gender identity.
Poly-sexual: can be attracted to person of other sexuality, genders or gender identities but not to all.
I find maybe the term poly-sexual is akin to me. I don't know but will end with this. Gender and sexuality are two different things. But sexual identity is not so vanilla, strawberry, or chocolate in life. But is for many of us maybe more fluid... just my 2 cents.