You're starting to get into territory where folks arch their backs, bristle their fur and bare their fangs.
Your absolutely right.
But what you don't know about me is I kind of like to debate religion just to get people all stirred up. Same goes for politics.
I don't really care either way, but getting a rise out of someone is worth it.
The reason I don't care is: Does winning an argument about religion actually accomplish anything? other than self satisfaction for winning an argument.
Same can be said for any nontangible school of thought such as Politics, Art, Literature, Philiosophy, Psychology, Law, etc.
Most of the theories in all of these are opinions, granted there are areas in each that are very applicable and practical, but one can argue what is GOOD ART or BAD ART, or GOOD LIT or BAD, or wheter or not ADD exist or is just made up for lazy parents.