I have observed for quite some years now that one hardly finds black goal keepers in top European leagues expect French league. In fact the last time I recall seeing a black goalkeeper in Premier League was Shaka Hislop of Portsmouth that was about 5 years ago or more. Does it mean that blacks are not good in being shot stoppers?

Chelsea has a black keeper in their youth team. The chap is very good.
Watch out

Not the biggest soccer fan, I was born and raised in the stars and watch basketball. But I think it is because black african are know for their athleticism so it just makes more sense to let them loose on to the open field and use their speed with the ball and play defense.