I presume the notion behind your idea is that this will eliminate racial divisions? Nice idea in principle but utterly pointless in practice.
If you're hoping to eliminate discrimination between peoples, your pharmaceutical solution will solve nothing. People will always find ways to discriminate against other people. Prejudice based on skin tone is just an overtly obvious one that any moron with functioning eyesight can participate in. Eliminate it and the mob will switch their attention to some other physical, sociological or historical attribute and try and use that as a tool to get their grubby little hands on the levers of power.
The genocide in Rwanda in 1994 happened between two identical racial groups. The were both black African peoples. They willingly and enthusiastically murdered one another because of tribal differences. The warring Tutsi and Hutu tribes hate(d?) each other due to their perceived social class; in Rwandan society, the Tutsis historically controlled more cattle than the Hutus. And that's about it. And because of this historical difference, they slaughtered one another. Race had nothing to do with it.
The Political Left love exploiting identity politics. Intersectionality is their goal. It divides the world into various camps and essentially pits them against one another in a victimisation Olympics: Are you black? Then your opinion carries more weight than a white persons'. Are you black and gay? Then your opinion carries more weight than a straight black man and exponentially more than a straight white man. Are you black, gay and trans? Well then, you're heading into the stratosphere of intersectionality and your opinion and worth is so much greater than the straight white male that he's essentially no longer on the field of play. He's not even on the bench. And so it goes on. Endlessly dividing aspects of individuality into ever more smaller and smaller units until you reach the pinnacle of victimisation... which changes all the time. But one thing's for sure; in the intersectionality Olympics, the straight white man is right at the very bottom. Why? Because he's the progeny of racists. And if you're the child of racists then you must atone for their sins... endlessly. Like the Biblical teachings that say, the children of sinners shall also be treated as sinners even if they have done nothing wrong. A concept that has long been discarded as unfair, prejudicial and antithetical to the notion of 'innocent until proven guilty'.
Why?
Because the intersectionality fascists say so. Were you involved in the killing of George Floyd? No? But you are Caucasian and the person who killed Floyd was Caucasian so you must atone for his sin. Get on you knees, sinner.
What? You don't want to get on your knees in front of a baying mob that demands that you do so? Then you're a racist apparently and not someone who is able, willing and has the courage to stand up and say that they won't be ruled by imbecilic mob mentality.