Yeah there's a thing for a while now in the US where we like to talk about "judeo-christian" values or roots or whatever. I've never really understood it except as a way to exclude islam which I really believe is all it is.

Parts of the white evangelicals going hard into it is weird but not completely out of nowhere I guess.

BUT! Anyway the "judeo-christian" thing is just a rhetorical move. I think overall Americans are very ignorant of judaism and think it's a lot more similar to christianity than it is but no one thinks they're the same religion. Uninformed but not likely to mix the two up like this.