Obama class warfare? No sign of it. I think Obama's a great human being, but he's a essentially a conservative by any sane standard. With the economic stance he holds now, he'd have been a Republican in 1970 (a time in which Republicans were not all horrible).
..and you are basing an individuals total tax rate based on income tax alone, which doesn't account for the many other taxes that someone has to pay.
I suppose if you made money, didn't live in a house, and didn't spend your money in any way, your tax rate would be 50% in France. This just isn't the case for the average consumer.