There is no white guys are small meme. The only race that's small comparatively and has been measured extensively are Asian men. Black men are not the largest on average but a few black men from the Congo and a few other countries have the largest functional dicks in the world. On average there is no concensus on what race has the largest average dick size. I have ashkenazi and white ancestry and I have a 8" length x 6" girth dick and I've been larger than all if my friends no matter their race. Jewish ancestry penis size has also never been studied. Though I can say that my ashkenazi Jewish friends have claimed to have the largest dicks compared to the claims of my other white/asian/black friends