Is catholicism an unnatural religion?

It kind of isn't, but it's not too bad. There are more people that are not priests than there are priests, so it's not like humans will just stop marrying. I heard that it's because priests could not handle the responsibility of raising a family and also being a priest. With the married people not allowed to divorce, it's just that after meeting the person that you chose to be for ever and you made the decision, what good will it be if you just then divorce.