This is a great article on why we can't just let Google Chrome / Chromium take over the Web, and need to fight for other alternatives.

But as well as looking at the browsers, we need to look to the platforms too. If everyone ie uses Twitter, then Twitter are less likely to make changes because no one has an alternative. Whereas when we have multiple viable options, folks can jump around and use better platforms if they exist.

The IndieWeb is looking to do this - check out https://indieweb.org/why for a bit more info