IMHO it's our duty as technical users to advocate for a more private, open and de-centralized web for everyone.... We should especially be doing it on behalf of the users who don't understand the long term implications of Google's (anti-) features.
'Just switch to another browser if you don't like it' is not a compelling argument.
Every tool in the toolbox to make the web better.
In that context, it's a bit cynical to belittle the problem as you are doing there when this has been a very real issue for several years. As by now Google, Facebook, and Amazon control the vast majority of web traffic and have been doing so for years already [0].
This isn't some hypothetical scenario, it's something that's already very real.
[0] https://staltz.com/the-web-began-dying-in-2014-heres-how.htm...