If that was the case there would be less single mothers.
If you have easier access to people wanting to fukk, you have easier access to a relationship (if you do shyt right that is).
If you got 20 nikkas coming at you trying to fukk and you pick poorly that's on you, not your options. It's easier to pick from those 20 nikkas, that you know all at the very least want to fukk than it is to pursue women whose desires and intentions are not known until you put yourself out there first. They may not want anything at all to do with you.
The amount of single mothers is actually yet another thing that flies in the face of your point regarding women and attachment free sex. If what you are saying was true then there would be no friendzone as women would be gravitating towards the long term guys and rejecting all the pump and dumps and we know that just isn't true.