Honestly, these are ads that actually support the content I watch. So that's why I keep the adroll by default. AFAIK Google isn't getting any cut of it and that makes me feel good.
> Are you buying a product with a tracking code? If not, it's not supporting anyone
Not all ads are equal. Most ad segments are performed with a direct transaction: advertiser hands YouTuber money, YouTuber puts ad in their content. There may be additional parts of the deal such as tracking codes, but that's not how it works.The YouTuber gets the ad money, even if the video is not watched. Though that does not mean you should skip the ad, because the videos have heatmaps and no one would advertise if the segment was always "cold". Though what the OP is saying is you can send strong signals (to both the advertiser AND the YouTuber) as to what ads you're willing to watch and not. In fact, in this way, it is a great tool for making a more efficient market as it increases information quality. But only under the assumption it is both pervasive and not used bluntly.
Remember in all advertising funded models that you are always the product. The market is for "high quality" (i.e. profitable) viewers, not high quality videos.
There's no bigger waste of bandwidth than ads, by the way. Ads are noise that's deliberately added to the signal just because it makes somebody somewhere money. These are actually the most charitable words I can use to describe ads.