I for one am shocked--SHOCKED, I say!--to learn that anything bad could happen as a result of a) putting everything in "the cloud" and b) handing control over the entire world's source code to the likes of Microsoft.

Who could have POSSIBLY foreseen any kind of dire consequences?

Nobody. Nobody at all could have seen it. Microsoft is cool now, haven't you seen VSCode? They do Open Source, they run Linux, they've joined the fold, the tiger shed its stripes.