I don't think casual sex is necessarily immoral, assuming that neither person intends to get married in the future. The main victims of consensual casual sex are future romantic partners of the participants, so if both participants have completely foresworn the possibility of having long-term relationships, I have no ground from which to call it immoral. However, it seems that this particular "use case" is pretty uncommon.
People make some bad choices, everyone has their flaws. If you are looking for a relationship that really makes you happy, find someone you love and deal with things you don't agree with.
What caused you to have this reverse "Prince charming" desire? No offense, but you seem to have an incredibly high exclusion rate for women. A lot of it seems to come from sexual oppression.
Lastly, what do you possibly mean by "The main victims of consensual casual sex are future romantic partners of the participants". You claim to not think it is immoral, but lay that judgement down like it is factual?
You have got to be kidding me. He's imposing standards on women? Since when did being selective about people who you start relationships with become an act of imposing standards on other people?
When you selectively choose your co-founders, are you imposing your set of standards on them? Is it a recipe for disaster? When an interviewer for a popular company is more concerned about false positives than false negatives, is that a recipe for disaster?
(it was also primarily in response to other comments like 'The saying comes to mind about how, in the US, it's very easy to find a great job and very hard to find a decent woman, as opposed to the other way around in most of the world.')