right. and that is where the basic problem is majoritarian democracy. A minority that is segregated into a small number of legislative districts will never have enough political leverage to reverse these kinds of decisions and is in fact the recipe for attracting them.
I'm not saying the answer to America's race problems is to throw out democracy, but that we first at least have to understand the basics of what is going on under the hood before we can figure out how to make the system work better for everyone. The weaknesses inherent in the system have to on the table for discussion instead of wrapped in a gauzy shroud of Founder worship, secured by American flag lapel pins. Otherwise we waste our time and energy arguing peripheral issues that never change anything anyway.
But it goes back to my basic contention about almost all of human existence: Humans build conceptual models of how things work but they are never more than approximations of the underlying reality. So the trick is not to fall so much in love with your models that you fail to see that every model breaks down, requries constant tweaking, exceptions, regulation. In the US we have become really bad at this. We over commit to or cannonize models when most things are only good ideas up to a point: 'Free' markets being one easy example but the list is long and hits things at both ends of the political spectrum. And yes the current Constitution is even one. There is a reason they made it amendable, but you woudn't know it anymore.