What works in America does not always works overseas and is not always a virtue. For example, does Kerry want Germany to legalize the NSDAP aka Nazi party again or Nazi parties in general? A Nazi like party can be legal in the USA because the USA has a 2 party semi-offical system that blocks out third parties in general and secondly, this sort of party would get no traction even if we had 3rd viable parties. In Germany and in Europe with a proportional electoral system a legal extremist party is not so easily side swiped.