Well, we ought to repeal several of the Amendments, particularly the 16th (Income Tax); 17th (Popular Election of Senators); the 19th (women's vote, *yes, I might be a little unpopular here, but I would repeal the 19th); the 18th and 21st concerning the prohibition of liquor should have never happened; and I would tweak Sec 4 of the 14th which states speaks about the "public debt of the United States." All of these members of Congress should be held to strict financial limits.
All of that said, I will pose the same question to the members here which I once posed to my philosophy students, "Show me a country in the world where I enjoy the freedoms which I enjoy right here in Kentucky, and I will wait for your answers?" Orestes Brownson in the 19th century wrote in many essays that the Church enjoyed more freedom in America than the church in Europe. Brownson would have much to say -and he certainly did not support the female vote- and, were he living today, would speak out against the Income Tax and a few other things. Although communism is making inroads all over the world, we still here in America have a 1st, 2nd, and 4th Amendment.
I know there is a sentiment among many traditional Catholics today that America should be a monarchy, because this is the way God intended it, "The husband represents the family, and the king represents the country, etc, ad naseam." The Constitutional Convention in Philadelphia debated making Washington a king for the period of ten years, but they fought against the idea. Probably the greatest read on the subject of the Constitution is Brownson's book on the American Republic:
http://www.orestesbrownson.org/resources.html And when I was in Merry Old England in 2000 (the first time), it was in the London newspaper that a farmer shot two thieves with a shotgun, killing one. They were inside his house. The English judge wanted to give the farmer a life sentence because of the firearm laws in England at the time. So much for freedom in England, and this was twenty-four years ago. At the end of the day I can stand on my front porch with an AR-15 and say "get the hell off my property." Try doing that in England, in France, in Germany, in Italy, in Spain, and see what happens.