It's also disingenuous to compare their manifesto to full on communism when they are planning to leave the majority of the economy to the private markets. Just because someone thinks that Marx's analysis is insightful doesn't mean that they are advocating a soviet style economic system.

You say their plans are "hardcore socialist", but most of them have comparable implementation in other western european countries. And socialist or not (socialism isn't a dirty word you know), they have generally been very successful for these countries.

To take one example, a large proportion of the British rail system that is supposedly "privately" run, is in fact run by the state rail companies of other countries (who bid on the contracts). It's kind of crazy that we allow them to profit off our country in this way.