Totally rewriting the constitution became necessary when our politicians failed to work within its confines, claiming it outdated.
Our government officers found it too difficult to get amendments passed, usually with good reason, so they resorted to the Old World Order of tyrant-government by passing masses of unconstitutional laws, programs, projects, offices, agencies, etc.
The Old World Order Rule was simple: Government will exercise what ever powers it desires, pass what ever laws profit the politicians in office at the time wanted, and then see if the people can muster enough force to stand up against the very military forces they pay to protect their rights --against domestic enemies in their own government.
Our military, as with every tyrannical and dictatorial government has become mercenary, loyal only to their paycheck. They will do what they are told. No thinking required. No thought about The Constitution under which they are bound to protect the people's rights from our domestic enemies in our own government who pass unconstitutional laws, the officers who enforce those unconstitutional laws, and the judges and prosecutors and defense lawyers who see to it that innocent people are found guilty and jailed for having violated those unconstitutional laws. These, are our worst domestic enemies.
The New Constitution needs to be a self-teaching civics textbook for the entire country that is taught as one of the child's first-readers. It should address the relationships between the various government branches and levels so as to eliminate (at the very least, reduce) the confusion among the various government officers as to their duty when it comes to reigning in the unjust powers exercised by other government branches and levels. The 20/20 Founding Charter & Constitution for "The United States of America does precisely that. It works primarily from the intended design, as outlined in The Declaration. It sets aside the actual practices of the people of that generation, who failed to heed their own advice of: "all experience hath shewn, that mankind are more disposed to suffer, while evils are sufferable, than to right themselves by abolishing the forms to which they are accustomed."
The founding generation knew the European practices and customs (slavery, woman suppression, violate constitutions, take land other people inhabit, etc.) so they simply continued those practices; many, still practiced right up to the present. They simply changed the names from king to president; from parliament to congress; but the practices remained the same.