Subject: Re: Our Founding Fathers Said What?
No point was missed Dope. Ar the time of the Constitution, the founders thought slavery would disappear in the next 15 years. Slavery was becoming unprofitable in the North, so slaves were being sold South. The invention of the Cotton Gin, changed that, and Cotton became King. Slavery now became really profitable for many. So your 5/5 hypo would have had to have been done at the time of the Constitution, not when slavery was in its heyday - not likely, as you can see 3/5 was good then.
If you think an amendment for 5/5 can be passed later, again - not likely. No one ever gives up an advantage for free , there would need to be a Quid pro Quo.