> and -an belongs to anyone influenced by papistry ([..] basically any western European and their historic colonies)

Spain? Portugal? Netherlands (pre-reformation)? France?

I see some gaping holes in that theory of yours.

Actually, the weirdest of those seems to be Netherlands with "Dutch", which is horribly confusing to anyone not fully aware of the distinction between the Netherlands and Germany (Deutschland -- which to English speakers sounds dangerously close to "Dutchland").