Wouldn't Cromwell's protectorate have been fresher in the minds of the Founders? Wouldn't he, and his effective abolishing of Parliament when it got too inconvenient, have been the far more relevant example of a demagogue?

I didn't live in the late 1700s, nor have I read much history specifically addressing the period which wasn't focused on setting the stage for the Civil War, but I figure the Founders were far warier of a Cromwell than any King Charles, Charles, William, or George.