Looks like the Congress might be in trouble. Since they swore to obey all of the Constitution AND ALL of the Amendments.
The Initial Constitution didn't include the Bill of Rights. Not sure who all where involved in ratification of 11th and 12th Amendments, but those were done during Founders Generation too.
Then you have the 13th Amendment, passed by some very patriotic people.
Not that there is anything wrong with opposing Amendments. Since even Amendment about Prohibition was repealed just fine..
I think we might need another yard stick.