You're failing to see the other side of the economic ledger in those other countries. Those 'other' countries don't spend nearly the amount on their defense as the U.S. Let those other countries fund their own defenses, without American aid, and let's see how long they're able to provide "free" healthcare then. Their brand of socialism only has a facade of working due to the fact that they are being subsidized by America.
RE: Left Leaning Liberals and Proponents of Socialism will often offer things like Free Education for All... Medicare/aid for all, etc.