Now here's how it works in the US. Let's take my $170K household income (it's 2x of state median in Massachusetts, but 1x in my town). My effective tax rate (without medical insurance and without employer part of payroll taxes) is 33%, but with employer taxes and after tax base adjustment it's going to be (0.33 + 0.08) / 1.08 = 38% (I'm ignoring social security cap here, but it won't make a big difference). But we left out a very important part, and it's medical insurance. Let's add 24K/year (14%) to the mix, then it becomes (0.33 + 0.08 + 0.14) / 1.22 = 45%. Oops! Sounds like I'm paying the same percentage as in Germany. Sure, I have 2x of median, but for 1x things are getting even more ugly, because 24K will stay the same, and while the income tax is lower, medical will take its part and more.
Of course I still bring home more than an average German family, yet expenses are different too so it's hard to compare. Sure, I can buy more junk, and I have a bigger home so I still have some place to live after I placed all that junk :) But to the original comment:
> The American lower and middle classes pay a lot less of their incomes - that would be the group that would have to pay for an American welfare state. That won't go over well...
No, American lower and middle class doesn't pay "a lot less of their incomes", it's simply not true.