I don't deny that Northerners didn't want to be inundated with blacks in the 1800s. We don't want to be inundated with Mexicans now so is that right or wrong? Hell, there are some here on this thread that don't even want to be inundated with other Americans or do you not remember the post where the guy said (paraphrasing) "don't move down here".? People don't like their communities disrupted or the continuity disrupted to a great degree. You can't equate that perpetuating slavery.