Yet they very strongly embrace the union of church and state, which is very much in line with the RCC.
Protestant churches haven't all always been free of that kind of entanglement either & quite honestly, I think the RCC has learned the error of her ways in that area. We are better served in joining together with our Roman Catholic brothers & sisters against the encroachments of Islam & the secularists who are trying to use the separation to silence us, force us out of the public square, than we are by holding their mother church's past transgressions against them.