Now, whether US government was or is Marxist - no. However it is socialistic in the sense, that it figured out that it can do whatever it wants if it prints money and taxes income to buy votes, and buying votes from the mob is the most socialistic thing.
Sorry, I lost you here. I believed socialists countries like Sweden or Norway did not in fact buy votes from the mob; they provide good basic services to all people, such as education, healthcare, etc. What you are referring to is a part of populism and of lobbying, and has nothing to do with the fine socialist tradition we have in North Europe.
And if you think of socialism in a negative way, see it like this: I got to school for free, to the university for free (because of merit, of course), I get cured for free. I am more than happy to give back more than 50% of my income in taxation, because the services are all there were I to need it, or my family.
Contrast with the US, what you call "a socialist" country. As far as I know, if you get ill and you don't have insurance it's your damn business. Or look at the sorry state of the education system (I've recently seen a nice movie, "Waiting for superman", on the subject).
Really, that statement does not make sense, and is offensive to me. You seem to be stuck in the McCarthy-ist era.