Yes! Exactly. And the fact that Apple was successful doing that is sort of a killer argument against an antitrust case.
Look, antitrust isn't about enforcing your personal idea of a perfect browser ecosystem. It's about protecting the competetive efficiency of the market by guaranteeing that new and smaller players (and new technologies) don't see an unfair barrier to entry.
Your argument is just that Chrome is an unhealthy monoculture ecosystem. I even agree. But that's not an antitrust case and you need to stop pretending that someone is going to come around and rule Chrome illegal for you. The arguments I've seen are all very narrow and will have very narrow remedies.