I'm old enough to remember when the movement was called Gay Lib. Then Lesbians and bisexuals insisted on inclusion and it became Gay and Lesbian Rights. Bisexuals were added in and it became LGT Rights. Through it all, the movement had one message: "We aren't asking anyone else to turn gay, we just want to be free to express our own proclivities." This is an appeal to basic fairness and very hard to argue against. Reasonable people will agree that what ever happens between consenting couples is their business.
Two things have happened in the last couple of years that have turned this argument upside down. It began when the transsexuals managed to include themselves into the mix becoming LGBT then LGBTQ, sometimes with other letters added at the end. This flew below the radar until 2015 when the Supreme Court declared gay marriage legal nation-wide. Suddenly the LGB part of the alliance had achieved all of their goals.This is self-defeating. Where gay rights advocates have always insisted that you can't force someone to change their sexual attraction, now the trans people are demanding just that. And they are not just demanding it from straight people. They are demanding that everyone change. And you just can't expect people to change their sexual preferences because you demand it. It just doesn't work that way.
This is also a total redefinition of what it is to be gay or straight. By this reasoning, gays are now two people with the same secondary sex characteristics regardless of primary sexual characteristics.
I expect that this conflict will start breaking up the LGBTQ alliance. If that doesn't then the gender-fluid folks will.