The entire 2001: A Space Odyssey series should be a TV show.

Okay, not the point.

Some of the “drawbacks” are the only way Firefox works as well as it does. If Mozilla didn’t have usage telemetry data, automated crash reports, etc, Firefox would be a much worse application. This is how modern software development works when you have millions of users across a dozen or more platforms.

LibreWolf only exists because Mozilla does all the actual development and runs all the infrastructure. That’s like saying the US Virgin Islands should take over the rest of the United States.

If websites want my business they’ll support my browser.

Sure, but that goes both ways, which is the part where you start losing a lot of privacy evangelists and Firefox fans. You are entitled to full control over your device and browsing experience, and sites retain the right to block browsers interfering with ads, trackers, or whatever else the sites use to pay the bills. A lot of people want it both ways and that cannot work at scale.