Thomas is dumb because he's black

This is the conclusion reached on Best of the Web Today and by others commenting on the remarks of the new Senate Minority Leader, Harry Reid of Nevada. When asked by Tim Russert on Sunday's 'Meet the Press' whether Reid could support Justice Clarence Thomas as the Chief Justice of the Supreme Court, Reid said:

I think that he has been an embarrassment to the Supreme Court. I think that his opinions are poorly written. I don't--I just don't think that he's done a good job as a Supreme Court justice.

"An embarrassment?" "His opinions are poorly written?" What else can we conclude from this?