You don't get it because you have given yourself a set of phoney facts you use to defend your positon. You say everything is rosy economically? Seriously all the facts show  is the biggest divide in wealth in the US there has ever been. with the middle class shrinking and their incomes shrinking ad the 1% getting more and more. There is massive debt in US that prevents any future government from balancing a budget and  will never be paid off. The participation rate in the labor market is at an all time low. Those who are may be working at two jobs because they can only get part time employment . They are considered fully employed but have no benefits.
Then thee are the wars Obama started, Libya, Syria , Ukraine, Yemen . Sudan. Million are fleeing from these hell holes  in waves that threaten the west and the way of life here. 
Yeah you need to realize the reason you don't understand is you simply are ignorant and seem comfortable maintaining that ignorance to support your bias.