I am sorry you believed he did not care.  I am sorry you do not realize our economy has recovered faster than most any other in the world from the recession in progress when he was elected - things are tough all over.  
I guess YOU didn't care about all the people without health insurance that have it now, but he did. I am sorry you had no idea that before the ACA, health care costs were driving this country bankrupt, and since the ACA health care costs per capita have come down.  
I am sorry you voted for a congress who blocked our majority-elected President in every way and even put our economy in jeopardy by not passing a budget, just because they hated the black man.
I am sorry that you liked having such a large portion of our precious young men overseas fighting in wars that New Orleans drowned because even the National Guard was in Iraq.  Obama brought them home and put down Osama Bin Laden, but I guess you don't care.
Which Americans in particular did he not care about?