Europeans are converting euros into dollars and buying gold. America has always been viewed as a secure haven during crisis. The result is a big transfer of capital into the US economy which bolsters the dollar and the economy despite Obama’s bad policies. Gold also rises due to increased demand and long term uncertainty about the American economy.
You’re right. The U.S. economy isn’t a “good economy” — it’s simply less bad than the others. For now, that’s good enough. For now.