The abuse, sure, but the birth control stance is really the only one compatible with the Catholic idea of sex only being appropriate in the context of a monogamous, lifelong married couple. I'm not really sure what you're getting at with that one, since there wouldn't be an HIV or STI epidemic in that world.

In this world with real people in it a lot of needless suffering and death resulted from that allegedly principled stance. I'm not sure what to take away from the idea that in a different, imaginary world this would have been harmless, except to conclude that you blame people for not meeting a particular ideal of "love" and sex.

Again, one promulgated by people who see fit to protect pedophiles and allow them to continue their abuse.