Eric Clapton has been clean and sober for decades, so the episode you're referencing - if indeed it ever happened - is in the very distant past. You're trying to rake someone over the coals for an alleged comment made a LONG TIME AGO. Nobody has dug up your past because you are not a person of significance. If they did, would they find nothing wrong, ever? You have never made an off-color comment?
I have to ask what possible benefit to humanity your article serves. Are you becoming holier by pointing out a racist comment made by a celebrity 40 years ago? Will you go to heaven because of this sanctimonious claptrap?