All adult males were allowed to vote
was ruled unconstitutional.
It was ruled undemocratic because it gave leadership to the judicial department that went beyond what the Constitution drafted. In 1803, U.S Supreme Court case, Marbury vs Madison, a ascertained the expression of "judicial review". It recommended that Courts In America had the inclination to put down regulations or government activities that go against what it is placed in the Constitution. It was alleged undemocratic, due to its endeavors to expand the jurisdiction of the tribunal further than what it was authorized by the Constitution.
Natural law
Thomas Hobbes
John Locke