We have some good examples to pick from throughout history - postwar Britain nationalizing major industries, Sweden’s soc-dem era, Allende’s Chile (though the US put a quick stop to that), Israeli kibbutzim…

You are collapsing three different questions into one illogical conclusion, leaning heavily on one of the least successful examples of collectivization in the history of mankind. One could use your line of reasoning to argue that because there are bad capitalist countries with authoritarian governments, who do indeed go door to door and murder its citizenry as political suppression, capitalism itself is bad. But they still wouldn’t be logically correct.