The userbase, is not the same thing as the handful of technical individuals, such as ones found here.
The bread and butter of the userbase cares only about the optics. So long as the stupid banners are taken out of their sight, hardly anybody would care of more.
If they did, Snowden news breaking would have bankrupted every company named participating in the Orwellian schemes.
Privacy is an elusive abstract, not really understood or appreciated by the public. Partly because we never had it - and have always been accustomed to various levels of intrusions.
Even the EFF doesn't understand the abstract well enough to market it properly, even though their main operations are dedicated to it.
Like it or not, those of us who care about privacy are in the position of that kid browsing the internet and demanding someone makes a browser plugin for some obscure bullshit that only came up in some fossil of a 500 users niche forum.
Take a moment and be appreciative you even have "pi-hole, third-party cookie blocking and uBO," to fall back on.
Its not google's fault that firefox decided to shoot itself in the head, with a 2 week update cycle that outdated everybody's plugins constantly. Or that their performance shit the bed.
The way I transitioned to Chrome was when the 14 plugins I used for work - were driven off development because people couldn't keep up with firefoxes bullshit. At that point you might as well use the faster browser thats not memory leaking like crazy, if plugins are off the table anyway.
Theoretically, you can make a company that offers a premium browser but who the fuck is going to pay for that? It's possible to market it to enterprise and say that buying this will prevent people from collecting data on their employee internet activities. But then you'd need a whole lot of business mojo to not only fund that, but then staff it with top talent. Because as garbage as google may be, selling out to help China censor itself. They still have top level enginers you have to compete with. Some sacrifice in performance may be an acceptable tradeoff in favor of privacy, but it can't be too big.
And its not just a browser that you have to repalce, email is mandatory, then you are still left facing the temptation of google docs. What is google docs to the small business? A one stop save for infinite amounts of money on bullshit micorsoft licenses, windows is enough of a drain to start with.
Be glad that google is not offering an OS on PC. We'd be lamenting the days MS was ripping us off.