Queer Marxism/Theory isn't about LGBT. That's just one area where the Marxists have found their revolutionary energy that they so desperately want. 

Queer Marxism calls for the abolishment of normalcy. It wants to get rid of anything considered normal. Once something abnormal gains normal status, they will then attack that ... and so the viscious demonic destructive cycle will go on and on, constantly destroying everything decent and normal in society.

The goals are to disrupt, destabilize, dismantle and destroy the individualist free society, and replace it with communist forced - collectivism. 

The Marxists don't actually care about gay or LGBT. They are merely using them to seize control. Once the Marxists gain control they will kill the most radicall of the "rainbow guard" movement just, like they did in China with the red guard that put Mao back into power.