Earlier quoted context omitted.
You talk about Google as if it's a person. You should take a step back and think to yourself why the changes were made to Manifest V3 that broke backwards compatibility, weakening ability to ad-blocking. Rule set based modification is one of the first features I'd think of when developing a systems of extensibility in browser, and they removed it. The reasoning is obvious, and "plausible deniability" is not enough to…
Manifest v3 is not going to lose any meaningful marketshare. There continues to exist working adblock and most users won't notice any difference in functionality. I sure don't.
Eventually, there will be an overstep that make enough capable people mad, and those people will get together and make/mod something better.