Has the internet warped your mind to the point that you seriously think people have folders of links on standby to paste to support a point (an obvious point as well)?
Find me a big city in the west where white people have even stayed the same in their percentage of population since 1990. I can't find any in the top 100 or so cities in the US on a 30 second search - everything is a decrease.
Your first sentence and your second sentence are profoundly unaware, and I find that kind of funny.
You made a claim, then got pissy about being asked to cite it, and are now asking me to cite something instead, as if you hadn't just flat out refused to do exactly what you're asking me now to do. The balls on you!