I don't use ad blockers on YouTube because the creators that I watch on YouTube are people who I actually care about. I watch content on YouTube from real people who I want to be able to profit off of me watching their video. Ad blockers are effectively piracy, your taking the content without the agreed upon price, in this case, the price of the content is the ads.
And I don't make that comparison to convince anyone that they shouldn't use an ad blocker, I just think the decision of where to use ad blockers should be made with the understanding that you are pirating any content that you consume while using an ad blocker. Are you willing to pirate something from some random mega corporation? I am. Are willing to pirate content from this niche 3D printing YouTube content creator that you enjoy? I'm not.
As a default, I do use an ad blocker, but I will disable the ad blocker for any website that I can trust enough to not have malicious ads, especially websites that i want to financially support. Because for me all it means is sacrificing a little bit of bandwidth to load the ad that I'm just going to ignore anyway.