You seem to believe that Obama is the vile person king of Dan 11. Obama is either Christian, Muslim, or both. As such he believes in God. Hence, he doesn't seem to fit Daniel's specs of the vile person king:
Daniel 11:36-37 36 And the king shall do according to his will; and he shall exalt himself, and magnify himself above every god, and shall speak marvellous things against the God of gods, and shall prosper till the indignation be accomplished: for that that is determined shall be done. 37 Neither shall he regard the God of his fathers, nor the desire of women, nor regard any god: for he shall magnify himself above all.