The welfare programs in Germany have worked for some time (started around 1900, IIRC).
And I'm not sure were you got that tax rate. Because it's certainly false. I think you are deluding yourself.
You do realize that many of the states that are failing (California and Michigan) have had some of the highest taxes, largest wages for city workers (Some in California were paid > $200,000/year), and many expensive social programs (Just look at all the money that was pumped into Detroit over the past 20 years).
In Michigan, businesses are taxed on gross income rather than net (A few other states do this too). I don't see how anyone can think this is a good idea. The more difficult you make it for a business, the less likely a business will want to be there (and there will be less jobs).
"And I'm not sure were you got that tax rate. Because it's certainly false. I think you are deluding yourself."
You can't just look at income tax. You need to include VAT, sales, and everything else that you need to pay on a yearly basis.
I'd say Germany 1900 to 1950 is a pretty compelling argument against government authority and managing of the economy and welfare of the people.