suppose ....I happen to be a religiously devout, socially conservative, free marketeer and political libertarian who believes in minimal state intervention.  Does that mean I am not welcome here?

Yes, of course you are. On the basis of civility of course, but must accept that such views, being in the minority here, will be challenged and cannot just be repeated as a conventional wisdom as they could be on other more conservative sites.

Equally, I don't think I was making an absolutist point about who we are either. The first sentence is my get-out clause;-

I don't think there is a simple or single answer to your question.