And reading your tag line, they’re not big fans of religion either.
The Left isn’t a fan of Judeo-Christian faiths.
They are into multiculturalism as long as it is foreign to the traditions of Western civilization. Anything else is the work and world of dead white European males and part of the establishment they’ve long sought to cast out.
It is a culture war. Subversion. They are not tolerant of all faiths, skin colors, or political beliefs. They dream of creating a new socialist utopia and believe that they will be the ones in charge after their revolution comes.