Not sure our congressman care anything for their oath to the constitution.
We've not declared war since 1944, yet America has been involved in multiple wars.
Our borders remain wide open despite a constitutional mandate to secure the borders.
We may possibly have a foreign born person sitting in the White house, yet congress and judicial branch refuse to investigate.
Not to mention the multitude of federal bureaucracies that have zero constitutional subscription nor mandate to even exist.
You're exactly on point. When politicians and judges aren't actively ignoring the Constitution, they're distorting it to find "meanings" the Founders never intended. Sunstein's project sounds like a rehash of the Communist Manifesto.