Nods. In the US, there’s a right-wing talk show host named Dennis Prager. www.prageru.com is his operation, and it is interesting. Unlike most of the right-wing talkers, he is not a bomb thrower, but an intellectual; he is also a religious Jew.
Interestingly, he has been asked to speak several times at the largest atheist conference in the US about, I believe, the future dynamics and tensions of religion and atheism. He related once that at the conference, he noticed that there were sessions being offered regarding the “problem” (depending on how you look at the matter) of atheists having an extremely low birth rate, well under 1 confinement per woman. This of course forces them to reproduce their “culture” via socialization, not reproduction.
I bring this up because it seems that a substantial majority of progressives seem to be atheists. So, to your point, they have to gain adherents through prosletization.