Some debt is understandable and it's not a problem if solid management is in place, and it was never an international concern until recently. But the American people elected a man who was obviously not ready to hold any responsibility position in government and no one is quite certain yet of the long term damage he has done, and can yet do, to the United States.
It will take an enormous effort to get out of the mess and, like the UK, it doesn't appear that the will is yet there. Many people were suspicious of his Presidency because he lacked any obvious qualifications, but he had to have a bit of a chance. But it became clear quite early that he was well out of his depth and his record sustains this negative opinion.
Treat the earth well: it was not given to you by your parents, it was loaned to you by your children. We do not inherit the Earth from our Ancestors, we borrow it from our Children. ~ Ancient American Indian Proverb
“I think if Thomas Jefferson were looking down, the author of the Bill of Rights, on what’s being proposed here, he’d agree with it. He would agree that the First Amendment cannot be absolute.” - Chuck Schumer (D). Yet, Madison and Mason wrote the Bill of Rights, according to Sheila Jackson Lee, 400 years ago. Yup, it's a fact.
Obama economic results in 2011, .4% GDP and 1.3% GDP growth in 2011, 24+ million unemployed or under employed Americans in 2011, 4 trillion added to the debt in less than 3 years, and a downgrade of the U.S. credit rating. Rising Misery index 7.83 to 12.67. First President in U.S. History to have our credit downgraded on his watch!