I couldn't pay a parking ticket I got a few days ago because I needed to download a half gigabye app to pay it, and my $250 phone from three years ago wasn't new enough. And they developed the app first, and there was no fallback to just HTML. My only choice was to go to the station and pay. What if I couldn't afford to travel to pay my ticket in person and couldn't afford a phone made in the last 18 months?
And yes, certificates will be politicized. If you displease them, they can have every device in the world block your server.
Of course, soon, Firefox will just be a re-branded Chromium, because of course Mozilla's brand is the only asset it has, as we all know that if Mozilla can't make Firefox keep up with the impossible standards that Google sets for us, then it is worthless. If Firefox can't implement the latest polyfills or DRM garbage that Google decided on, then it should be thrown out and we should just accept our new overlords.
Use any technology in a non-standard way, and it quickly becomes clear how bad things are. The rot is even more visible in developing countries.
This is hegemony. Not exaggerating.