There is only an incentive for varied ads when there is a market worth marketing to. By shrinking that pool you are only continuing to create the situation you describe.
But... by
not shrinking that pool I'm outright lying -- making signs I'm an existent market, when I'm not and won't be -- and creating false market signals for the advertising companies, which is pretty scummy from an economic point of view and
probably impacts a considerably larger amount of people. It's certainly creating a situation where the advertisers are sending good money after bad, marketing to a market that doesn't actually exist -- because people like me, who don't block ads but also will not watch/be effected by them, are giving false impressions that they're a potential market.
I'd almost certainly state that, from an ethical standpoint, if you're absolutely sure there's nothing that can be advertised to you that will cause you to purchase the advertised good, you
should turn on adblock. Because regardless as to if you do or don't,
someone is going to be robbed that ten cent -- either the youtuber, or the advertising company paying them when they drop a dime for a false signal.
And there's marginal other efficiencies gained (bandwidth, electricity being used for activities that might actually generate market) involved for the person using adblock, which... further tilts things in their direction. Better to just turn it off if you're certain the ads aren't going to do anythign for you -- let the advertising companies spend that $0.10 on something that's going to actually make them money and be able to support more youtubers.