Are class struggles alive and well in the U.S. today?

I am assuming, that since there are social and economic classes in the United States, than there must be some sort of a struggle between them. For sure it’s nothing as severe as during the Industrial Revolution, but the worse the economy gets, the more visible the struggles and general anti-trust between classes gets.
In the U.S. we have the three major classes, the very wealthy, the middle class, and the poor. The middle class is the largest class, and it’s kind of a buffer between the two other classes. In many other countries the middle class either doesn’t exist, or it’s only growing, so the struggles between the rich and the poor are more visible elsewhere.
The United States wants to be seen around the world as the country, which provides for everyone, for all the classes. Our country has an image known to the world, as a place where the poor can become rich, and it takes little to fall from the top. In reality it’s less and less like that. The wealthiest 10% wants to keep as much as possible to themselves, and they will not share. The lobby is very powerful in Washington, and that’s why ordinary people often get fed up with the government, which seems to protect not the needy, but the ones who already have so much. The recent example of a man, who crashed his plane in the IRS building. Not too long ago, we all had our own opinion if the government should bail out the biggest Wall Street banks, but not the people, who were loosing their homes. Previously to that we were appalled by the Bernie Madoff scandal.
The higher the standard of living gets in America, the less struggles we see, the worse the economy is, the more people become angry at the wealthy and the government, because they don’t see an equal division of goods and money between the classes. The wealthy don’t suffer as much in a bad economy, the middle class gets by, but the poor really suffer. The conflict between the Wall Street and the Main Street will always exist.