Socialism and freedom cannot coexist. From Alasdair Macleod at mises.org:
There is a certain tension in the phrase, “social democracy,” and the description of someone as a social democrat. Social in this context is socialism by the state. A democrat supports the freedom for individual electors to express and defend personal interests in regular plebiscites. The two positions are incompatible.
At this point we should note that in economic terms there is little philosophical difference between European socialism and communism. Both seek to relieve capitalists of the means of production in favor of the state, either by ownership or control. Marx himself saw socialism as a temporary phase on the way to full communism. However, we all know from experience that communism fails by impoverishing everyone except a coterie of leaders. The same problem of the state’s inability to calculate prices, other than with reference to labor costs, and to foresee what consumers require on the morrow bedevils both socialism and communism. The principal difference between the two is the speed at which economic disintegration takes place, tied to the rate at which the socializing state removes personal freedoms and destroys wealth.