My point was just on who it affects, but I'm assuming what you're referring to is this:
I don't really want to get into an argument over rather or not it's acceptable to say "You can't make any more than x amount of money, and if you do, every bit above that line goes to taxes." All I'll say is... good luck with that.
Anyway, to clarify the numbers people are throwing out, we've all heard before it's just hard to remember specifics. This is *PURELY INCOME TAX*, in 2007:
top 1%: paid 40.9% of all FPIT
top 5%: 60.63%
top 10%: 71.22%
top 50%: 97.11%
bottom 50% (32k household income and below): 2.89%
sauce:
http://www.ntu.org/tax-basics/who-pa...ome-taxes.html
For a bit more detail there's this:
http://www.taxfoundation.org/news/show/250.html
Which shows the top 1% paying over 40% of taxes while receiving 22.8% of total agi.
Food for thought: taxing the top 1% of earners (average income: 1.5m per year) an extra $10,000 a piece would provide a whopping 14 billion extra tax revenue...
Taxing everyone an extra $10 a piece would provide about the same.
Now, extrapolate those numbers to quantities that would result in the kind of deficit reduction we actually need, and you see why it's so hard to get that kind of money out of a million people in a 200 million+ person society.