Yeah, I don't think so.
Blocking Brave for violating their usage agreements seems very much in another league, even though it might sound like they are building a browser monopoly via their video streaming monopoly. They are not in a position where they take the choice of defaults away from the user, and as long as Firefox, Safari and Edge have some market share, the user still has a choice of compliant browsers. Blocking Brave might be more akin to enforcing their ToS for Youtube via their Play store by blocking 3rd party apps with download function (which is prohibited in Youtube ToS).
Yes, but so does uBlock Origin, Adblock Plus, etc.
> collects money on the behalf of others
Why would they need permission from Google to do that? That's completely unrelated to them.
That'd be a copyright violation. But Brave isn't making or selling copies of anything, so I don't see what your point is.
1) It blocks ads, just like a browser extension would
2) It has a set-up a payment content creators can take advantage of.
I fail to see what is wrong with either.