Yep, kids are their own persons, to a degree. Where do most of them learn what they "think" or how they "feel?" They learn, first from their families, then by observing society. Both their families and society teach them, in too many cases, that there are master and "slave" ethnicities, even today, and that white is the master. Wow, white guilt is centered so much that no one seemed to care how black people felt--you know, we were the victims of all of the insults and horrors of slavery. I wish those folks had cared then as much as they claim to care now.
Right, no person alive in the U.S. has owned slaves, but everyone, black, white, and other, deals with the repercussions. Have you ever heard of this family called the Rockefellers? For the past several generations, not a one of them has done what the original John J. Rockefeller did, yet a century and a half later, they live well off of the proceeds of his business, his handshakes with corporate America and the U.S. government, and, of course, the exploited labor of hundreds of thousands of workers. The refrain, "But I didn't do it!" has no purchase here.