Moreover, I don't understand how having a built-in adblocker is seen as a selling point. Wouldn't it be more powerful to rely on a third-party add-on like uBlock Origin?
Only one "purchasing" decision to make at that point.
It was trustworthy, until it wasn't.
These things don't make them inherently evil, the world isn't black and white and people doing good still need money, but it flips your idea about singularizing trust in the browser maker on it's head.
I would prefer a world where all browsers have integrated ad blocking, in which case I only have to make a decision on browser, not browser + ad blocking extension.