> billions of other people in the world will just work on a fork and that will become consensus.
Yes, yes, billions of people will work on the fork.
> To literally take Chromium as an example. Look at Google's manifest v3 changes.
That literally changed nothing in Chrome dominance.
> Brave and all the other chromium based browsers just put their own ad blocking shim on top and they're fine.
You mean: they literally just slap a skin on top of a Google-developed project, do no actual browser development of their own (do they even participate in web standards?), have vanishingly few users and are likely hemorrhaging money?