If America's economy collapsed what would happen to all of the citizens? What if the whole global economy collapsed? My journalism professor is not an expert in finance or economics but has studied history.  She is always giving us a negative lecture on the America's economy and how the rich  are taking al of the wealth for themselves and letting America fall to ruins so everyone else loses everything and just is on the streets.  She said this is basically what it like in Detroit and Michigan right now and that seeing how divided we are socially, she thinks we're going down just as worse as Rome.

She really freaked me out.  Is this true>  I know it sort of opinion based but if you can just give an answer on what would likely happen in a case of economic collapse for just America, just Europe, and if the whole global economy collapsed as well.  I know the rich have enough investments and saved resources to live for decades, but for people like me lower middle class, what will happen?
There is no simple answer to this question. She is just giving her opinion on the topic. However, so long as USD is the main reserve currency for other governments and oil is mainly traded in USD, Americans can keep buying their guns at low cost. Gun laws are more detrimental to Americans' lives and hence the economy than anything else in the foreseeable future. This is my view, there is more...