300 hours of YouTube videos are uploaded every minute. Assuming that the average video is 2x the minimum required to maximize ad revenue (10 min so 20 min per) that is 25 videos per second. Assuming you can do a deal every 10 minutes you would need 630 people to get ads for 1% of the videos uploaded.
The entire point of that complicated web is to eliminate the cost of all those people and move that 0.1% that you could actually do to closer to 80%.
While it is true that we have given too much power to advertisers the solutions to the privacy problems that solve the advertisers requirements is hard (remember they are the only ones paying into the system so dropping their requirements won't happen). There have been some technical papers put forward but they are as complex as BitCoin is in order to actually allow for a small subset of the features the terrible leaky privacy of the modern web gives them for no effort.
The entire point of that complicated web is to eliminate the cost of all those people and move that 0.1% that you could actually do to closer to 80%.
While it is true that we have given too much power to advertisers the solutions to the privacy problems that solve the advertisers requirements is hard (remember they are the only ones paying into the system so dropping their requirements won't happen). There have been some technical papers put forward but they are as complex as BitCoin is in order to actually allow for a small subset of the features the terrible leaky privacy of the modern web gives them for no effort.