I don’t care about the religious aspect a tenth as much as I care whether or not the candidate is a genuine American - that is, one who loves and supports our Constitution, our legal heritage and our historic culture and traditions.
As far as religion goes, anything within the sphere of the Judeo-Christian faith is fine. Most pols, however, list their ‘faith’ as a boiler plate part of their political CV.
. . . and, as it turns out, most of the justices of SCOTUS who fit that description are Catholics.