A counterexample:

After WWII in Poland, Moscow installed a communist government in Warsaw, which promptly started implementing communist policies. One of the biggest ones was collectivization of farming - taking pieces of land and joining them into massive, state-run farms. After around 10 years of this, the studies started showing that this collectivized farming is so much less efficient than private farming (which didn't receive any subsidies!) that, if the whole country converts to it, there's a risk of nation-wide hunger. Further collectivization was stopped shortly after, even though it was clearly against the official dogma of private property and capitalism being the root of all evil.