> What does it have to do with me rendering Youtube videos on my own computer in the way I want?

It doesn't. That interferes with google's ad revenue stream, which is why YT continues to try to make it harder and harder to do so.

You don't have that right. When you view copyrighted content, you do so at the pleasure of the licensor.

How you watch copyrighted content has never been something that copyright has controlled.

If the content needs to be copied or downloaded in order to be watched, you may do so exclusively under terms set by the licensor, period. You may not even get fair use rights, as to get the content in the first place you might have to agree to terms of service waiving them, and being found to use the content in an unapproved way would be grounds for cutting off your access.

So in other words, copyright doesn't cover it, thanks for confirming that. The click through contracts you describe have no legal force where I live.