This is basically entirely a result of the new prominence of the transgender movement.
A lot of people came around to acceptance of gays because they were convinced by arguments that "gays just want the same rights as you, there's no slippery slope"
but now we see that it's a mainstream liberal position that children should be given sex change hormones and puberty blockers.
There obviously was a slippery slope and people feel like they were tricked into supporting gays under false pretenses.
No one needs their support, especially when it's from people of such low moral character. They just need to mind their own damn business. Worry about their own lives.