Attractive women have beta male fetish

I really don't know why, but young and attractive females, the ones that I saw on Instagram or Twitch, you know "the streamers", only fans creators and fit influencers are always have sissy beta male as a partner. I really doesn't know why females choose men weaker and looking worse than them.
Is that a special domination mechanism? Or they choose the weakest ones because of their money to get even more money from their beta buxx partners?