If web developers stop ensuring their sites work in Safari, their sites will still work in Safari because Google ratifies and publishes the web standards that Chrome follows so that Safari and other browsers can follow it too, something that Safari actually does less than Chrome.

Consumers choosing Android isn't a choice of which browser to use, it's choosing which operating system to use. That doesn't sound like you care that consumers get to choose which browser they use, that's letting Apple choose which browser that Apple consumers use then telling them they can choose a different operating system instead.