Some problems, perhaps. But not all problems. In the US, the government is supposed to be restricted to a certain set of functions that are explicitly delegated to it in the Constitution. It is not supposed to solve everything that anyone thinks is a problem. Of course, the actual practice in the US has diverged greatly from this, but that is a bug, not a feature.
> Compare Europe with the US
I have no problem with Europe having different policies on this from the US. If Europe wants to have government solve many more problems, that's up to Europe. And people who want to live under that model of government should live in Europe.
The US was supposed to be built on a different model of government, for people who want to live under a different model of government from Europe.
> The US still wrestles with problems that Europe (and much of the rest of the world) has forgotten about - and it does that because it confuses 'freedom' with lack of effective central government.
No, the US wrestles with these problems because we prefer to wrestle with them instead of sweeping them under the rug and hoping that "government" will somehow solve them without we the people having to get involved.
I don't share your rosy view of how well Europe has actually solved the problems, but I don't live in Europe so I am not personally affected. And conversely, those who don't live in the US should not presume to tell me how well the US is doing. I live here and I can judge that for myself.