It would not,because most white people arent like this today. Although they have varying degrees of being racist. Like most people in this country,they have been made to be docile and less barbaric. So ultimately it would just feel like history to kids reading up on this.
Its best to just know that in genereal,cacs are indifferent about righting the wrongs of their ancestors. And the ones who actually have power and wealth to do so,if not indifferent they are malevolent. So you basically still have those who do the figurative lynching,and those who will sit around watching the lynching for varying reasons.
But without the actual lynchings,black comfortability will remain at all time highs in this country