Speaking more broadly, there's the simple fact that people deserve to be paid for the work they do. Many places don't allow you to pay with money, they force you to pay with ads. I find viewing ads to be an unacceptably high price, so I use an ad blocker, and I just go away if they turn me away for that.
But for places that do give a money option, like YouTube, I jump for it, as I find that to be a far more ethical business model[1]. I'm happy to support businesses that give me the option to pay by doing exactly that.
In other words, I wouldn't worry so much about the very fine details. And supporting your creators on Patreon will give them way more money than any amount of individual YouTube viewership.
[1] Yes, I know they're still tracking me. That doesn't bother me as much as viewing ads or supporting the ad-based clickbait attention grabbing business model, so I think it's still a win.
I think this is true, but it still works out such that given the amount the average Premium subscriber watches, creators' typical per-view revenue is still higher for Premium views. They can apparently see the breakdown (ad revenue vs premium revenue, etc., ad-supported views vs premium views, etc.) in the backend, and various people who make Youtube content for a living have reported this to be the case. See, e.g., https://twitter.com/hankgreen/status/1513177490730061829 .
Another anecdote I've heard from several creators is that much longer videos (like a 5 hour livestream recording) are now much more profitable because of premium viewers. With ads they either need to include an ad every 10 minutes, which means 30 ads in one video and turns people away. Or they only include a few ads in which case people do watch it, but it's far less profitable than a 10 minute video with a midroll ad.