We don't have to repeal freedom of religion but we can stop giving them tax breaks at least
Yeah, when I'm GodKingEmperor, I'll remove the 'religious organization' qualification for 501(c)(3) status. A lot of religious organizations would still quality, by being qualified educational institutions, or charitable organizations, or whatever. According to one website about 501(c)(3) exemptions, this chart outlines who's eligible:
We can see that, currently, a religious organization doesn't need to do anything else to be eligible, but a lot of existing religious organizations would also, or still, be eligible under one of the other categories. BYU, for example, is one of our top research universities. So, if I were in charge, any place that was
just a church and nothing else would either have to set up some kind of charity or pay taxes like everybody else.
(Are the Jesuit schools still formally religious? I have no idea. But I think they're all regarded to be good schools. Boston College, Holy Cross, Loyola, Gonzaga, Fordham. I think there's a couple-dozen.)