I don't pretend I have some moral high ground, I just don't want to see ads, and if I can do that and still not pay, I will do that. I don't care if it's unobtrusive, I don't care if it's relevant or not, I don't care if it's for a service I love and would otherwise be happy to talk/hear about, advertisements are a cancer that should be eradicated and I will not pretend to care about the opinions of people whose livelihoods rides on selling me crap.
I'd rather not use Youtube entirely (aka be blocked off by Google) than ever be subjected to even a single microsecond of an ad. Ads are psychological manipulation and I refuse to subject myself to some slimy marketer's ad campaign. If I were made God Emperor of the Earth for the day, the one and only thing I'd do with that power is make sure these people rot away in a dark hole forever, that's how much I detest this whole "market" and the "people" involved in it.
Even paying for this stuff isn't a guarantee of anything. Their "Lite" tier has verbiage to the effect of "No* Ads (* Some will still be shown)". We've seen with cable television that the insidious cancer that is advertising creeps its way in as well, and cable was NOT cheap. Plus, it's known that for advertisers, people who actually shell out cash are even juicier targets, and you'd have to be a genuine imbecile to trust the likes of Google or Meta to not abuse you even harder, even if you pay for the service.
MAYBE I'd be willing to pay Google if I had a guarantee that no advertisement will EVER be shoved in anywhere in the future, and that I get a guarantee that they will punish those sponsored sections that creators put into their videos if I pay for it, and if I get a guarantee that they won't continue to profile me incessantly to shove ads at me everywhere other than YT. We all know that's not happening though, and I have absolutely 0 interest in lining their coffers with both my money and my data.