Two consenting adults, including relatives?

[Esquilax]

If we really DO live in a pluralistic society, religion is entitled to the same 'tolerance and respect' that we hear chanted like kumbaya, by the supporters of abortion on-demand and SSM.

Agreed, but that tolerance ends the moment those people feel they can dictate the rights of others based on their own group's internal rules, like religions so often enjoy doing.

Moreover, this doesn't absolve you of being called out on bad behavior, either; if you're going to be intolerant, perhaps you (general you, not you specifically, Lion) should be prepared to be called intolerant. Especially when the views that cause you to express that intolerance are based on unverifiable magic claims, not readily demonstrable facts.