Show me any free market that tends towards monopolies in the long term? Oh you can't can you, because it doesnt happen. I'm also still to see a valid argument against a monopoly in a free market. Face it, you're communistic ideas are defunct, and completely ridiculous, as shown by the Soviets and pre-1980 China, which were both hell holes. I mean FFS even Putin, from one of the most left wing countries on earth admits that Socialism, let alone communism, fails catestrophically.
Yeah... Putin is a good source, because capitalism worked soooo good in Russia (mainly Yeltsin's fault).
The old state-planned economy model doesn't work, but a democratic centralists coöperatif economy can work and does work just fine.