The only way Hooters could in principle discriminate on the basis of race is if they come up with some first amendment pretext for it; e.g. the waitress job is actually an artistic performance and for some reason the art demands the performer be a certain race. That works for movie productions, but for a bar hiring waitresses? In practice it wouldn't work because the courts and the public would both write you off as an obvious racist.
The only way Hooters could in principle discriminate on the basis of race is if they come up with some first amendment pretext for it; e.g. the waitress job is actually an artistic performance and for some reason the art demands the performer be a certain race. That works for movie productions, but for a bar hiring waitresses? In practice it wouldn't work because the courts and the public would both write you off as an obvious racist.