I see no evidence that dev's are switching to Linux for their dev machine.
And this recent peak in anti-apple sentiment stinks to me of the same mentality that led to Britain leaving the EU and Trump becoming president. It goes along the lines of...
"This thing isn't perfect by the definition of perfect that matters to me. So I declare it to be fundamentally and irrevocably broken. It should be thrown away and everyone should do this other ill thought through thing that I like"
There's a case to be made for Linux, but if your case is always presented with an "Apple sucks" pre-amble, then I think you're really just a fanboy.