In 1973, the top 10% held 49% of wealth; the bottom 90% held 51% of wealth. That means 37 years ago, middle- and lower-class citizens could afford to buy American, shop in small community stores, pay their bills and have savings accounts.
By 2005, the top 10% held 73% of wealth; the bottom 90% held 27% of wealth. That means that middle- and lower-class citizens can now only afford to buy cheap goods from China in giant big box stores that deal in volume, not quality, have difficulty paying their bills and saving at the same time.
This is not a Bush-bashing subject. It's a topic for discussion that big corporations run the economy now, and small businesses exist only to support them. There is no doubt about it.
Problem: You are measuring
wealth, not income.
In 1973, your average American saved money for down payments. Saved money for retirements. Lived within their means, and thus were able to save money (and thus grow net worth). Nobody had McMansions, but nobody had $500,000 adjustable-rate mortgages.
In 2005, your average American was in debt, ie had a
negative net worth. Wealth does not measure income, but rather net worth, and so those few who managed to have a positive net worth became increasingly richer than those in heavy debt.
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For instance, my parents are in the top 20% wealthiest people in America. They have highschool educations, live in a modest one-floor suburban house, and saved that wealth on a blue-collar working man's salary. Now they are set for life.
You would demonize them because they're in the top 20%, but they got there through hard work and frugal living. They sure as hell don't want to spend their hard-earned money bailing out irresponsible idiots who are defaulting on their McMansions.