That's pithy and funny, but not really fair to most of the Founders. Akhil Amar's biography of the Constitution gives a readable refutation of that concept.

He doesn't really refute the concept as much as he suggests the system was better than others at the time.

In his lectures, at least, he argues not only that the system was better than others at the time, but also that the founders designed it in a far more democratic way than people give them credit for in retrospect. Perhaps this was not emphasized in the book; it's been awhile since I read it.

It is a very difficult thing to argue for the correct amount of credit to give a historical figure. I respect anyone who tries.

It wouldn't be open source without license disagreements.