I've a fair few gay and trans friends and most of them are as embarrassed as hell by the militant ones (probably says more about the type of person I'm comfortable with as a friend than anything grand about LGBTQetc as a whole) as Christians are by the Westboro arseholes.
Someone always over-reaches. The Left tend to do that more than the Right, whether through their stupidity or our more risk averse nature. They'll keep pushing until they get the inevitable backlash, then sit there looking dumb and wondering what happened.