“Actually incest doesn’t CREATE troublesome genes ~ it merely creates more opportunities for harmful autosomal recessive genes to do a mix and match job. “
Ever see the movie “Wrong Turn” Or “Wrong Turn part 2, 3 and 4”???
Yea it is kinda like that. Basically what you just said only someone had to go put it on the silver screen.
inbreeding didn't always work out for the Brits either...

Remember, just because a gene is recessive doesn't mean it's bad, nor does being dominant make it good.