I think it's unprofessional for developers to try and bring down production services just because they disagree with a company move. It's also a bit immature. The thing to do in this case is to quit. Down your tools and quit, but don't destroy the hard work of your teammates and betray the trust of all your investors and customers.
Sometimes you reach a point where the doublethink necessary to seem reasonable and professional leaves you despising yourself.
Sometimes it isn't enough to ask, "What would John Galt do?"
In times like these, sometimes the only reasonable question is, "What would Howard Roark do?"
His answer, when his work was misused in a manner he could no longer bear to tolerate, was to break out the dynamite.
He invokes principle to seem high-minded, but his guiding principle is not patriotism but profit. He is merely hiding behind patriotism.
All I am doing is drawing upon literature (I am using the term loosely, but I suspect it is probable that more HN members have read The Fountainhead than the Iliad) to show that being able to live with yourself and the uses to which your work is put is more important than seeming "professional" or "reasonable".
I might paraphrase Rand to suit my purpose as the Devil quotes Scripture, but I have to say that for such an ardent atheist, Ayn Rand's worship of wealth and those who possess sounds a lot like prosperity gospel.
Then again, if you're trying to get a startup off the ground or hope to work for a rising startup, it probably isn't smart to bite the hand that might feed you.