It seems so. Back a few years ago when the survey data started showing significant declines in the number of Christians in the US, I saw a lot of non-Christians celebrating. But when I looked more closely at the data I saw how it was mostly the "liberal" or "mainstream" denominations that were losing members, whereas the conservative denominations either held steady or declined only slightly. To me, that meant that at some point US Christianity would be mostly made up of science denialists, dominionists, theocrats.....IOW the crazies.
I think we're really starting to see that now. I've noticed more than a few Christian message boards take turns toward white nationalism, antisemitism, revisionist history, etc. Not a good thing IMO.