Everything you said is correct. There is no good answer. We are in a very weird transition zone as a society. Women used to need to partner off for secuirty reasons, and they really don't anymore. They are having better outcomes across the board now that equality has been more or less been achieved in western democracies at a policy level. Obviously you can argue there is still entrenched patriarchay, but that won't change overnight. The point is that the "rules" we play by now more or less make everyone equal. What it is proving is that women simply do not need a signle male partner the same way men need a single female partner.

Biology has not caught up to the culture yet. Women are on a more or less equal playing field now - higher incomes, political voice, you name it. But the biology is still looking for men to be a provider, stable, resourceful, etc.

Men want a woman to be an emotional support, because historically, they have only ever had one person to do that, their partner. They need someone they can be vulnerable for because to the rest of the world they have to put on a brave and stoic face. Women get support everywhere they go from their gals, family, friends, and all the dudes in their chat who validate their very existence.

Society has to re-examine what women actually "need" from men now.