[tmptmp]

You are right to point out the differences but you are missing an important point. Let me see if I can help you out in the reasoning: when the people say "treat [sex] exactly like you would any other experience" they actually mean to say this "treat [sex] in a more abstract but practical manner exactly like you would any other experience".

So the treatment of sex should be similar to other experiences at a more abstract level than at the experiences level.

To go the other way, we can say that even the different instances of various experiences are not equal. e.g. one eating experience is not exactly equal to other eating experience in one's life.

So what they are trying to say and seems like you might have missed is: the way our society treats other experiences, it must also treat the experience of sex and our society should not treat sex in an extremely special way the way we treat the experiences like murders.

Hope it helps.