'DUKE MEETS BEATLES'↳ the beatles & brian epstein at the carl-alan awards, 1964. [x]
Mmmm the origins of these things are a mystery. :D
It’s not canon. In the comics, Steve has never mentioned his denomination, at least that I’m aware of, though he’s very devout in Ults (he and Jan have a fight about him going to church every week, oh my god Steve).
It’s generally accepted that his parents or grandparents were Irish immigrants, though I’m not sure where specifically that comes from — at any rate it was more or less confirmed recently in flashbacks to his childhood (which you should take with a grain of salt because those also retrofit some kind of important elements of his backstory, GDI Remender). Irish Immigrant for most people is shorthand for Irish Catholic, and Steve does seem to carry some rather Catholic-flavoured guilt around with him.
That said, in the films he’s canonically Protestant — it’s printed on his dog tags (though this is a minor enough detail it may be retconned in future). In 616 he came very close to converting to Judaism when he and Bernie were together, so I’m not sure how much of a damn he gives for religion in general. I mean I’m sure he considers it his duty to protect the right to practice one’s religion without persecution, but he doesn’t seem to be particularly fired up over any given faith. (It’s one reason that “There’s only one god, ma’am” line in Avengers still bothers me.)
I think there is a certain urge to make Steve Catholic because whatever the reality of the situation, Catholicism is seen in America as being a very historically rooted faith, one that has a certain contact with the past that some other denominations lack. Whether this is true or not, it fits nicely into the narrative of a man whose roots are in the past regardless of his present situation, especially since then you get to (as I did) write Steve being confused and wary about all the changes instituted by Vatican II.
The most important line in the whole damn song. MESSAGE.
The only historically accurate line in the whole film.