I was going to make a comment similar to this one, but you saved me the time. The fact that this site is not trying to be part of the otherwise global phenomena of politically-correct forced diversity is one of the thing which makes it good.
The funny thing about the way people use "politically correct" nowadays is that what you are saying is that the view "diversity is good" is not a correct one to espouse within your political tribe. That is, what you're saying is that it's not politically correct to have "politically correct" views. And nobody who espouses what you call "politically correct" views ever uses the term "politically correct". They just say what their actual views are.