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.
I hate to break it to you but Leninist and Stalinist "communism" allowed the Soviet Union to transform from a backward, war torn hellhole into a global super power. You can shit on collectivism all you want (I'll take individualism any day because I enjoy my personal liberties thank you very much) but to deny the fact that the Soviets achieved and maintained an extremely high level of productivity is historical revisionism at its finest. Furthermore, calling modern day Russia left wing is hilariously misinformed and even the false dichotomy created by reductive left/right thinking can not pigeonhole a corporatist nation dominated by the right-wing into somehow qualifying as leftist.