Yeah, and I've got a bridge to sell you.

Do you have any evidence of Microsoft doing similar spying tactics?

If you don't trust your computer's supply chain, (hardware, software, internet, services,) you shouldn't use it. I don't trust Microsoft any more or less than any other vendor, and that includes open-source.

With automatic updates, anyone (hardware vendor through drivers, software vendor) can backdoor you and grab all that information. We're even finding backdoors in (gasp) open-source software now.

I don't trust Microsoft and I don't use their software. When they say this data will be secure, they mean they're going to stream it to their servers and look after it with the industry standard security of "whoops, we left the door unlocked again".

You are arguing with fact.

Nothing in the article states that Microsoft will upload screenshots to their servers.

Microsoft does not have a history of uploading users' private data to their servers, without users consent a knowledge. (IE, OneDrive)