The ones who said "All Men Are Created Equal", but really just meant landowning white males? And who explicitly defined the worth of a slave to be 3/5 of a non-slave?
You are mistating the 3/5 compromise, which does not define the worth of a slave as 3/5 of a non-slave. Your version makes it sound as if it would be better if dishes were fully counted for apportionment, when that would be worse.
The compromise gives additional representation to the free citizens of a slave state equal based on 3/5 of the number of slaves, but if voting power is worth, then it is saying that worth of those who enslave is enhanced by the number enslaved. The slaves themselves, though, are not recognized having any worth.
The only sense in which the 3/5 compromise makes a slave worth 3/5 of a non-slave is that it makes the marginal increase in voting power a free citizen derived from an additional slave in the state 3/5 of what they receive from a disenfranchised non-slave. (IOW, Jim Crow and it's modern successors are 67% more politically effective for the disenfranchisers per disenfranchised person than actual slavery under the 3/5 compromise.)
