The left disagrees with these values. Free enterprise is to be opposed in order to rectify inequality. Free speech is to be contained to quash the extremism of political discourse. Traditional morality is intolerant and therefore to be jettisoned. And defending American values demonstrates bigoted ethnocentrism.
There are certain countries in which the founding philosophy is deeply flawed. America is not one of them. There are certain countries for which patriotism should be a sin. America is not one of them. American history, in all of its most glorious permutations, represents the outgrowth of our founding philosophy. Only by accepting the greatness of America's founding philosophy can we hope to ensure that freedom flourishes at home and around the globe.