Why would an American president talk down his own country?

If you will remember the speech Obama gave at his inaugural "Crowning" he clearly stated to the world,and his future subjects that he was going to "Change America".He has been a man of his word so far.All I can say is America has had the misfortune to elect 4 persons who truly hold contempt for their country,and its people,Wilson,Roosevelt,Carter,and now Obama.It is My fear that the current president will,if not checked,do more harm to America than all the others combined.History tells us what his goals are,but still we sit on our "politics" and gripe,nothing more.The storm is coming my brothers & sisters as sure as the sun rises in the east.  more