If anyone is calling you a racist, it's because you're making a blatantly bad faith argument intended to stir up antiblack racism by falsely implying black people are significantly more homophobic/transphobic than white people, which is categorically untrue and part of an age-old reactionary push to 1) absolve themselves by blaming another marginalized group, and 2) pit different marginalized groups against each other to prevent building solidarity between marginalized communities (communities which incidentally are not mutually exclusive), as well as ignoring the fact that there are just as many LGBT black people as LGBT white people, and LGBT people of color face a significant degree of racism from white people within the LGBT community.
If you cared to research the history of the flag by, say, doing a single internet search, you'd know that the pride flag with black & brown stripes is specifically intended to draw attention to racism faced by LGBT people of color within the LGBT community and to be more welcoming to LGBT people of color, it's not including people of color who are not LGBT or equating blackness with sexuality/gender. People in this thread have already told you that. The white LGBT community is notoriously racist, too, including to black LGBT people, but that goes conspicuously unmentioned. You know this, but you're playing dumb in order to provoke people while trying (and failing) to maintain a degree of plausible deniability. People are calling you racist because they can see through you, you're not fooling anyone. You cite "countless research papers" but you don't actually link a single one or name any of them, it's just a rhetorical device for you to use to justify a baseless argument where you ignore historical context to make blanket statements about an entire group of people. You can say there's countless studies proving the Earth is flat and the sun revolves around it, that doesn't make it true, nor would the existence of such studies make their content true simply by virtue of being a study if it didn't actually meet any scientific rigor or stand up to scrutiny of its results or of its methods.
The most generous interpretation of your "debate" style on this forum is that you're a troll who doesn't genuinely believe any of what you say and you're simply trying to get a rise out of people. And that's a sad excuse for the rampant racism and ableism (calling people the R slur, calling people "special needs" as an insult) across your posts. "Ironic" bigotry is still bigotry, it still causes harm, harm which you are indifferent to despite concern trolling about black people "appropriating" LGBT identities. You may not be dressing up in a pointy hood and burning crosses, but you clearly have a lot of contempt for black people to single them out as exceptionally homophobic or exceptionally transphobic when black LGBT people face disproportionately high rates of violence, especially black trans women (which I'm sure you could chime in with "that's black-on-black violence," but you'd be proving my point if you did). If you truly believed black people were exceptionally homophobic, moreso than any other group of people, you'd want to foster solidarity between the two groups to build acceptance and tolerance. You'd be focused on solutions, community outreach, that kind of thing. You're not doing that here. The sole argument you're making is "black people hate the LGBT community (and that's because they're black (and we should hate black people because of that))." There is no interpretation of that where what you're arguing isn't rooted in racism.
If you're a troll, there's no point engaging you. If you believe all this and refuse to listen to anyone who's taking the time to explain any of this, there's also no point in engaging you. I fully realize there's no point in engaging you, that none of what I've typed is going to mean anything to you except maybe to give you a giggle as you plan your sick comeback where you call me an idiot (assuming you are a troll). That's not what I'm doing. I really don't care what your response might be, you've given no indication it would be anything that you haven't already repeatedly said in lieu of substantive dialogue. But I typed this all out for the benefit of onlookers, to point out to them exactly what you're doing if there's anyone here who doesn't see it right away. Assuming anyone has the patience to read all this.
