Do you believe that the fact that you, personally, have never "seen a rich minority person discriminated against" effectively support your argument? Do you thin

Do you believe that the fact that you, personally, have never "seen a rich minority person discriminated against" effectively support your argument? Do you think there are any studies that have been done to try and see if there is racial discrimination in the taxi business? If you haven't tried to look for such studies, why not? Or if you did, why don't you cite them instead of your own personal experience in not seeing rich minorities being discriminated against?