To all Yuri/Yaoi/Genderbending-Lord fans out there-
It's not that I don't allow you to have certain taste in media. It's totally within your right.
It's also within my right to say that your taste is bland and insipid and might I add, fucken tasteless.
Bam get owned homo
You're technically right in saying you have the right to say that... That doesn't make your comment any more truthful though.
Like... GL and BL are just shoujo, really, that's all they are. The only difference is that in GL you substitute the Male Lead for another Female Lead, and in BL you substitute the Female Lead for another Male Lead... That's it. Everything else is the same as shoujo.
The reason people enjoy GL and BL is because often times in shoujo you end up finding that one annoying perfect Male Lead, or that one annoying ruthless Bad Boy Male lead, that has a soft spot for the Female Protagonist and only her and nobody except her... Those two extremely stereotyped Male Leads are sadly extremely widespread in shoujo. (Of course the good authors don't do that, but... Well, not all authors are good ones.)
So... What do you do when you get sick of finding terrible male leads? Simple, you remove them from the equation at all. Which leads you to GL where both Female Leads are equally important and well-developed, making for a good story.
Or you decide to put another Male Lead there instead, which leads to BL. Because suddenly there is no longer a blank self-insert female lead that wishes for a perfect guy in the story, now we can have proper characters because the FL is no longer a self-insert and the ML is no longer a wish-fulfillment.
That's basically why GL and BL are popular. The vast majority of the audiences of those genres actually came from shoujo due to wanting a breath of fresh air, and then they fell in love with how well-made they were.
Gender Bender is a bit more complex and different people may seek different things from it, but... For me, I basically want drama. I want a very specific kind of drama that only Gender Bender provides... The drama of being confused about who they are and what their preferences are.
The drama of being heterosexual at first, then getting genderbent and falling in love with someone that had the same gender they had previously... Or the drama of having a hard time accepting your body, and being unable to cope with it... I want drama! Give me the drama!
... A shame not all authors deliver the drama well, but the ones that do, usually end up making very good stories~ <3