It’s their choice, and I would simply not use YouTube. Access to YouTube specifically is not very concerning to me.
But if they try to normalize this or even attempt to influence legislators that adblockers should be restricted in any way by law, then I would be concerned, and for this reason I think it’s important to articulate right now that there is nothing inherently wrong or unethical about using an adblocker.
I agree. There are far too many people with the “if I’m not doing anything wrong, then what have I to hide?” mindset. I’ve seen people unironically say that all Tor users must be engaging in illegal activity, and I don’t think it occurs to them that in many parts of the world, freely accessing information is an illegal activity, and by adopting this mindset we’re empowering that type of state.