As for 'destroying society', what nonsense. Can you prove that?
The British Monarchy
Most European monarchies actually(the French had it bad, too), though society wasn't destroyed. Actually, in those cases where the monarch is just plain inbred, usually it was the case that the advisors would take the opportunity to seize power themselves and use the monarch as a puppet - society merely functioned differently, though usually not as well(not that monarchy is an all that great system in the first place). However, I think this is a poor example on how incests 'always' destroys society. If some redneck trailer trash do it, it really doesn't affect most of us. Even if incest was legal(and I'm not saying it should be) most people wouldn't do it.
