Start praying for them. Loudly.
Praying “loudly” in public is specifically proscribed by Jesus! Don’t go looking like a Pharisee and make a spectacle of yourself. Go pray in your closet.
Nothing would infuriate them more than having their perversions exposed in a heartfelt prayer that they should repent of their sins, confess Jesus is LORD and beg forgiveness so that they will not be cast into Hell.