I don't see that as a dogma. Aside from a few exceptions of homogenous, small countries, the more socialistic, the more government control, the less prosperous. The freer the market, the more successful.
That's simple statistics.
Again, I'd rather be poor in the States than poor here. At least right now, until the States socializes itself into worse and worse times, coming off of some serious pseudo-free-market idiocies.
You're right about the States and its heavy line of credit, which is crippling it. And the wars it's fought which cause division and contribute to the debt. Sheer stupidity and greed. But that just goes to show that the more government interference, the worse the situation.
Same can be said for Europe, absolutely.