I do agree that sex isn't yet safe. I have a friend who said that before you have sex, you need to be prepared to either have an abortion or have a kid. I think she has a definite point in that regard.

That said, I think making sex safer is a worthwhile goal. Things like the HPV vaccination, condoms, and the like can result in vast improvements if not absolute safety.

And, on the emotional level, I'm not sure sex will ever really be safe for most people. And I'm okay with that.

I'd say sex might be kind of analogous to driving in the technology maturity level. Cars are definitely one of the biggest threats to the health of people in the developed world. However, walking-busing-only education is a silly way to address the problem. :p