I'm not going to watch my friend's youtube videos.
Why won't you watch your friend's YouTube videos?
I don't want to watch them because I'm mad at him.
You should be more supportive of your friend and the online efforts that he makes. You are not being a good friend. Your friend will not be supportive of your efforts when you want them to be.
Dude I'm not a shallow asshole. I can support my friend without promoting him. I have my own time and energy to spend.
If he is really a friend of yours you will support him. You don't have to be a cheerleader but just give it a view.