To make any dent to Google's dominance over the web a potential fork would first have to gain any noticeable traction. This seems highly unlikely if well funded companies like Microsoft or Mozilla weren't able to leverage their properties (Windows in Microsoft's case) or their brand (Mozilla) so far. Plus, any major fork of Chromium would have to compete with Chrome's vast development budget.
I'd like to switch back from Chrome to Firefox but I have over 200 random passwords saved in Chrome and no way to import them into Firefox automatically. On the other hand it was totally painless to switch away from Firefox as Chrome features comprehensive profile import from other browsers.