Those who don’t understand what principles are would never understand who the Religious Right is, either.
I would put the writer of the article into your category - I think he’s a weak Catholic who doesn’t understand politics as well - there’s a tinge of forced ecumenism in the term “Religious Right”.
I will say that those who have principles are also those who can recognize some of those who proclaim their so called “Religious Right” as the only way are themselves unprincipled!