Because German society is very different from American society due to historical factors. The modern German state and people must grapple with their country's r

Because German society is very different from American society due to historical factors. The modern German state and people must grapple with their country's role in WW2 and the Holocaust. They have chosen to limit free speech for the sake of preventing future catastrophes, and that seems quite sensible to me. America's history isn't pristine by a long shot, but we don't have a legacy comparable to the Germans to grapple with. Without a clear and compelling reason for limiting speech, myself and most Americans favor free speech. Attempting to restrict speech without a clear and compelling reason (and I believe that such reasons do not currently exist in America) would be tyranny.