I think you meant Brave is a scam here.

I mean, it’s not like Mozilla runs their own crypto wallet with the browsers keeping a mayor cut for themselves only because they are distributing the browser.

Mozilla does not run a crypto based ad network and inserts it into webpages.

Mozilla has never been caught inserting their own affiliated links into crypto related websites to receive a cut.

So you probably misplaced Mozilla with Brave there.

Sure, Mozilla is not perfect and they deserve criticism when they do things wrong (and they tend to). But Brave is just a chromium skin + a crypto based scam built-in.