Yet, by AdBlocking them, you are doing fuck all against their "monopolistic stance". You are strengthening their monopoly all the same. And to be clear: I don't want to blame here. Block YouTube ads, I'm doing that too. I'm more irritated by how it's somehow spun as evil that YouTube dares to want money for a service they provide.
If Google had not shut down competition by outcompeting them, do you think those competitors would be free? If not, your argument is besides the point all together.