Why do you care if they're on patreon?
You care because it doesn't seem fair. They're not doing anything really difficult, so it bugs you that they get free money. I get it, but here are two reasons why you shouldn't let it bother you:
(1) life isn't fair. If you let yourself fall into the trap of keeping score, you're never going to be happy. You're just going to waste your life on bullshit like this. And here's the thing - happiness, not "fairness" and not other things like wealth, is the only thing that really matters. It's better to go through life poor, but happy and content, than to have everything but be miserable. Lots of rich successful people kill themselves - they were never content. Don't go down that road.
(2) patreon isn't actually doing these women any favors. Fame in general (and by extension, patreon) is really more of a curse. Their self worth becomes tied to it. They crave it like a drug, and when they can't get it anymore, they'll end up really, really unhappy.
Most of these women aren't smart enough to realize that the only reason they're getting money is because they're young and pretty. They convince themselves that they're talented. They really believe they're special. When their youth runs out and their beauty fades (and it will) those precious views/subscribers/patreon supporters will go away, and like every drug, the crash will be devastating. These women will drive themselves crazy trying to recapture their former numbers.
Pic-related is a great example. Those two images are just three years apart. That's how fast beauty runs out. She has this video: https://www.youtube.com/watch?v=6fBX4ILVqn8 where (at 3:30) she whines about how she doesn't get as many views as she deserves.
That's what the future holds for the majority of these women. It's really not something you should envy.
What you should do instead is take what you can get from them for free, and laugh at them when they whine. When they get old and ugly, just move on to someone else. Check this out - youtube just recommended this to me - her account is only 2 months old: https://www.youtube.com/watch?v=JAocY6LOp2I
Just like that, you move on to someone newer, and forget all about the last girl.