This is one of my peeves with the "racist" agenda. The 3/5ths rule was put into place because without it, the south would have had larger representation, i.e. more votes and slavery never would have been ended. It was implemented for a good reason. If greed were allowed, some in the north were pushing for taxes to be based on population, so that's why it's called the 3/5ths compromise.
They were always stupid. They took less taxes now, that gave way to getting rid of slavery eventually. Still took 90 years