I dont know if wearing a shirt saying "Proud to be white" is racist BUT IT SURELY IS DUMB
I mean - why are you proud to be white?
I dont see a reason to be proud of my whiteness?
I can be proude of my big dick attracting babes

... proud of my pot-belly looking so tasty... proud of my round belly after a nice big meal looking all shiny and cozy... etc... but my whiteness??? Why should I be proud of it?
I think you know why there is that "Proud to be black" shirt exists. And if we were a disregarded-minority of whites we would whear those counter-shirts
The "Black power" scares me a little. Its kind of fascist... ain't it?