I agree … but if you are standing in their store and they blast you with their advertising over and over again … they more or less can do whatever they want.
You have to step out of their space.
Use Firefox and stay away from Chrome.
Chrome is owned by Google … YouTube is owned by Google … so going onto their website using their web browser is like walking into their store using their limo. Since you are on their property and in their vehicle … they have all the ability to push whatever they want onto to you. You have no choice. You can’t walk into a Gap store and ask not see any Gap advertisements.
If you can visit their store using a different store front and a different vehicle … you at least have some options and ability to turn off features that you don’t want to see. At least you have a choice.
I’m on Linux with Firefox with uBlock Origin and I never see ads on Youtube