If you consider socialism as a broad concept of the state being able to confiscate anything from any individual, at any time, and then apply that concept to suicide bombers (who are sacrificing all for the "greater good" under strong social pressure from the ruling mobs who run their local world) then you see that Islam and Socialism are very close, in practise.
Socialism is the extension of feudalism into the modern age. That's why the EU loves socialism. It preserves the old system of the lords and nobles (but in a slightly different guise) having absolute power over the common slobs. And what is Islam, if not Feudalism, and by extension, socialism.
The difference in individual liberty between a poor EU citizen-slob and some poor schmuck living under Sharia, is one of degree, not of kind.