EU is not working for Firefox, I'm not sure why you'd expect that. Now people can choose, which includes the choice to stay in the same garden (less walled now).
What makes you think they expect the EU working for Firefox? It is not indicated at all in the comment. Is your world view already that there is only Webkit-, Blink- or Gecko based browsers?
We steered into a corner that is hard to get out of...
Who cares about the piping underneath? The only thing important about that is if they all display the same thing for the same HTML&JS.
Chrome has been becoming the new IE with the websites giving the best experience on Chrome - only. That's the risk.
What pipes the browser makers choose to rely on is between them and pipe makers I guess. Probably the pipe makers should focus on the developer experience.
It's all fun and games until the websites you need (bank, local government, etc) only support the pipes build by a tech corp in a faraway country. Diversity is good and healthy.
>until the websites you need (bank, local government, etc) only support the pipes build by a tech corp in a faraway country
they don't get to decide this if push comes to shove. Banks and governments in European jurisdictions obviously can be forced to comply with European laws and if there was some geopolitical question about security you can just force them to switch to a local fork of Chromium which given that it's open source is technically relatively trivial.
It's the same as Linux essentially. The overwhelming majority of commits comes from RedHat, Huawei and Samsung or other international corps which is fine because there's always the implicit option to fork it. We don't need fifty different kernels given that we're talking about open source software. In the olden days of Internet explorer and dependence on proprietary software this argument made sense because you could theoretically be squeezed without an ad-hoc alternative, but that's not the case any more.
Everyone should care. Chromium is built to further Google’s interests.
From the long lasting first party cookies to the ease of fingerprinting the engine is designed to make advertising more effective. But hey who cares about privacy.