Didn’t we “let the market decide” and the market drowned out every other player but Apple and Google?

Why did so many people pick iPhone or Android over their prior competitors? Because the developers wrote software there. Why did the devs write software there? Because people were picking those ecosystems. It was an upward spiral that changed the world a LOT in 18 years, but it was all started with Apple—being a hardware company—selling premium-quality hardware, and then adding their support for third party development.