But the issue here is it is usually Firefox advertising themselves to customers so that they can have a subset of those customers actually use google.

They market themselves as a "download and be private" which interests the casual user who hears about how invasive Facebook and google is online and is looking for a nontechnical fix. This small subset of users on Firefox are what funds Mozilla to use googles money to fund their hobbies.

Yes, people should educate themselves, but I personally think it's unethical for Mozilla to fund for-profit businesses that they control by exploiting this small, uninformed subset of their userbase and it makes it hard for me to trust them based on how they justify their means to an end.

And no, fuck brave, I'm for educating people on how the internet works and to educate themselves if they want privacy or security instead of trusting massive corporations.