after checking out the SUPER-HEROES Religion page from above
it is interesting to note (given the anti-communist spiel of Hollywood between the 20's=90's
that DC and Marvel share around 8 heroes who are current communists/marxists
and a further 5 who identify as former communists
also on that page were at least 3 different "Jewish Supermen..."
plus two different Catholic "Supermen" from around the world (Not US publishers), but I didn't do a thorough search, only visual in 10 secs...
so I guess, along the lines of my pervious post, so long as you do what you want with the uttermost care not to get your facts wrong...
then the ficdom is all yours to create