I like how in his head Microsoft are this big bad company that are the sole reason for Nokia falling from where it once was, and that all these Nokia engineers would rather die than work for such a despicable company, and doesn't see why people would use any other OS than Android.
At the end of the day, the engineers will go to whoever pays them the most, and I guarantee Microsoft will pay them more money. And as for "Nobody wants to use Windows Phone OS", a rapidly expanding marketshare begs to differ. As does his claim that we lack an ecosystem when Microsoft offers pretty much every service Google does, and more often than not does it better.