If you don't want to see ads then fine it's your computer.
But Brave is hijacking ads by force then strong-arming websites to sign up to their own shitty crypto currency if they want to be paid. It's basically an extortion scheme, or a mafia stye "protection scheme"
I bet that's a common battle ground between consequentialists and idealists.
Fun aside, I don't think the comparison holds up very well. I don't think that anyone has a right to execute code on my devices just because I'm browsing a website. In this concept, "hijacking" ads is completely void of any ethical meaning.
Braves platform attempt is still not very good. A good solution for paying content creators would need to be open, decentralized and accepted by the stakeholders involved.
In that case, you requested the page and allowed them to.
When a user views a website using Brave, that website doesn't get paid.
There may be extra ethical concerns due to Brave's model, but there's no way you can claim that Brave is "strong-arming" websites.