America. What happend to it?

I was reading an article about America (long time ago but I still remember it ) and must say that America has changed (atleast in my eyes) before i saw America as a place where is possible or maybe is better to say that I thought every persons right in that country is to be given a chance for sucess. And I saw that myth of America "promised country" is a load of rubbish . Truth is that its developed and modern country (I cant say nothing against that) but it has big issues especialy now when all world has seen that the country is run by oil companies (although that didnt come of like big surprise) but i would never guess that they have so big influence (maybe because my country isnt known for its oil industries) But to cut story short I would like to see opinions from you. Especialy on that part is America ever been a "promised land" or thats just Hollywood on the act