What do you mean unenforceable? Impeachment is how an oath is enforcement. An oath isn't meant to reassure the listener of the oather's intent, it's to make s

What do you mean unenforceable? Impeachment is how an oath is enforcement. An oath isn't meant to reassure the listener of the oather's intent, it's to make sure the oather is aware of what this expected of them and the consequences of violating it.