The list of what I don't "allow" (your words not mine) is much shorter. That said, I do enjoy Mel Brooks example of racial humor as he makes light of all racial humor. If all racial humor I've seen in this stream I've never seen "white racial humor." Even if it does exist its so disproportionately uncommon it ironically becomes token white racial humor. I may have seen one joke in my tenure on imgflip.
I have a very broad sense of humor. From George Carlin, to Jeff Foxworthy, Gabriel Iglesias, Wanna Sykes, Ron White, Aziz Ansari and so on...