People wouldn’t use Firefox if it couldn’t run google and if it made bing default then you’d see a bunch of idiots making memes about how it’s so bad and they won’t use it because it’s default

Google has been worse than bing for a decade and chrome has been worse than Firefox for longer. But people still use them and think they are the best.

You even have people make jokes about edge only existing to download chrome

I feel like you vastly overestimate the audience