Nah, you're missing the point.

Again, maintaining a web engine takes hundreds of millions. It's no small task.

Volunteers can't do it.

We cannot simply take over from Mozilla if something happens. It needs corporate or governmental backing, a permanent workforce, management at the top who work on setting web standards alongside other companies, etc.

The Linux kernel was brought up against my argument, but it is in fact an argument for it. It is worked on by megacorps, and without that corporate funding would be little more than a tinkerer's side project.

Linux has the benefit of companies relying on it and therefore wanting to maintain it. Firefox doesn't. Businesses have chosen Chrome.