that has more to do with evangelicals and events some catholics got conned by corporate interests in the early 30s in response to what FDR was doing with the new deal and the sweeping socialist thinking going around in churches at that time. read up on James W. Fifield Jr and NAM ( National Association of Manufacturers) you will see the destruction of US churches and the rise of the mega church and the 700 club.

Possibly generally more liberal but my personal anecdote as a raised Catholic- now non Christian , is that Catholics are only marginally less crazy than evangelicals. All Catholics I know are super conservative.

Edit: I know Biden identifies as Catholic and I’m not claiming my personal experience is comprehensive. Biden is the only Pro-Choice Catholic I’ve ever known of. Most people I know don’t even consider Biden a true Catholic because of his stances.

Evangelicals tend to not like mainline Protestants for being too liberal, the mainline Protestants are a lot less noisy and also traditionally better connected. Mainline Protestant conservatives have had no problem courting evangelicals historically though, which is one reason they’re in the situation they are now. Mainline Protestant conservative gives you a traditional stuffy republican politician, evangelical gives you MTG.

Evangelicals are an almost entirely US phenomenon. In the rest of the world, Protestant countries like Germany and the UK are more liberal than Catholic countries like Ireland and Italy. For example, Italy “legalised” abortion in 1978 but the vast majority of gynaecologists refuse to perform them on religious grounds. Ireland didn’t legalise until… 2019!

Ended up? Shit, Protestants started out way more strict. You’d have to worry about being beaten to death if you had any images of Mary or Jesus during the Great Iconoclasm. Most of the Protestants sects back then did not think Catholicism was strict enough.