Because Norway, Finland, Sweden, Switzerland, Denmark, France, etc. are all failed states. Sure wouldn't want to live in any of those hell holes.
only rich countries can afford socialism. Wait till those 'rich' countries see a severe recession or two. Citizens, who were pampered with expectations, wont like it one bit. Like everything else, a balance is needed. One more thing, socialism cant work if immigration is not controlled. Wait till those 6 countries you listed start getting flood of greeks and other euro illegal aliens (always makes me smile this word 'alien').