I agree the design wasn't about representation, and does seem to have been designed with being able to kick people out being important, rather than representati

I agree the design wasn't about representation, and does seem to have been designed with being able to kick people out being important, rather than representation (think about the fact that per the original constitution, the only federal office voted for by citizens was the House of Representatives). However, describing it as optimizing for concentration of power in comparison to British parliament seems to be incorrect (as others in this thread have pointed out). From my readings of The Federalist Papers, it seems more that they were trying to design a system which forced cooperation between its members instead of individuals with massive power. The executive is an individual, however, because actual execution is always better done with an individual on top. Of course, changes to the constitution and the world in the meantime have massively weakened the original design.