Absolutely nothing... and you make some great and valid points, so I'll just repeat what I said previously. Isn't up to me or anyone else to judge someone for their choice, for whatever reason. That's between them and whatever God they'll be answering to at the Pearly Gates, or them and their own conscious if they might be Atheist.
As to a man's rights?... You have the right to remain silent... okay, I am only kidding there! ;-)