This right here exposes the bullshittery about the reasons behind preventing sideloading on Android phones.

For Google everything is about protecting revenue, even when doing so exposes their users to real harm, and that's why they will not address the issue of copycat apps, poor practices on play store security or anything else that lowers the number of downloads on apps on play store. But, heaven forbid, I want to download an app that doesn't create revenue for them onto a phone I OWN, Google spends money lavishly.

The Internet cranks are right. Google is run by bean counters and all the invective the cranks heap on the Google leadership is entirely earned.