My point is that every extant implementation of Objective-C outside of Apple's own developer tools is inspired by and used by current or former Apple platform d

My point is that every extant implementation of Objective-C outside of Apple's own developer tools is inspired by and used by current or former Apple platform developers. Nobody today who was never an Apple platform developer has any interest in Objective-C. And that's why my statement is not too strong. Objective-C developers are a dying breed even within the Apple developer community. I continue to use Objective-C exclusively myself, but I'm a minority.