There is still discrimination in America. As you pointed out for Gay people, but it is also still quite in force racially. You seem to infer, that reverse discrimination is some kind of fact. When in actuality, it is only an attempt at creating a balance. Right now, education is skewed toward the wealthy. Their children go to the best schools, go the best Universities. The poor are subject to inferior education. Black children suffer the worst. Scholarships help a little, but were never enough. The same goes for poor whites, and hispanics. They have little chance of advancement.
In your statement about Iraq and Afthanistan, you are once again very wrong. We invaded both these countries. Iraq was invaded, because of an outright lie by George W Bush, that they had WMD’s. Which they never had. There are many dictators in this world. Many who the United States has put into power! Saddam Hussein was simply a minor dictator, he was no huge threat to anyone but his own people. We invaded Afghanistan because we blamed them forr 9/11 again a fallacy. They may have inspired the terrorists who brought down the Twin Towers, but they were not directly involved. They are a despicable group of fundamentalists, but they are no more despicable than their Christian counterparts.

The idea that somehow our founding fathers based our laws on the Ten Commandments, is yet another lie perpetrated by the right wing in this country. Our founding fathers, were actually very anti-religion. This is why they wrote into the constitution that no state religion could be established. They wanted to keep religion out of politics. The christian fundamentalists in this country have mixed religion with politics which is totally opposite of the founding fathers!

I think you have failed your history exam. You need to repeat your class! Just as America will repeat the errors of it’s own history.