You did say that, but it felt like a disclaimer rather than something you genuinely considered to be a possibility.

I think, right or wrong, you'd probably get a better result if the rage in your text was clearly directed at the consequences rather than the motives - if nothing else because, as you say, the motives don't actually change the consequences and it's the consequences you, I, and everybody else who likes having their own email setup has to suffer.

(to be clear, I'm not commenting on whether or not you should have been downvoted, only on my best guess as to how to get across the same information without it happening)