Ads are a violation of the sanctity of our minds. They are not entitled to our attention. It's not currency to pay for services with.
At some point some shareholder value maximizing CEO is going to sit down and notice just how much money he's leaving on the table by not advertising to paying customers like you. It's simply a matter of time.
Take a third option. Don't pay them and block their ads. Block their data collection too. It's your computer, you are in control.
If you truly have those beliefs the right moral action is to not use YouTube at all but god forbid you'd have to make any sort of sacrifice.
If someone gives you an ad filled magazine, you can rip out the ad pages and throw them in the trash, leaving only the articles you actually want to read. Same principle applies here. If some random person on the street gives you a propaganda pamphlet, are you obligated to read it just because some businessman paid for it? Of course not.