The reason we like the free market is that there is guaranteed to be competition in a free market and that's guaranteed to lower prices and improve features, which are not things that happened in communism. If those things aren't actually true then why do we like the free market - how's it any better than communism?
"Guaranteed to happen" vs "doesn't happen at all" is a false dichotomy.
If you think a company is doing a bad job of serving its customers, compete with it.
If you're right, and you can do a better job of serving those customers, you are likely to become rich.
If you aren't interested in competing, maybe you don't actually believe it is possible to do much better.
I agree that in principle, there can be a role for the government in removing structural barriers to competition. I haven't seen that role particularly well-articulated in this thread, though.
