How can you assert that no better alternatives exist?

I can't. Nor did I. I just said it's a possibility one should consider in light of the progress working people have made in capitalist countries.

I will listen patiently while you explain how decisions that are made by corporate bureaucrats are superior to those made by government bureaucrats.

Somehow, the risks taken by the capitalist "trickle down" to middle management. The corporate bureaucrat's pay depends on whether his decisions cause more people to have more goods and services. Sure. there are feckless bozos there, but life is about probabilities, and macroeconomic results are clear: corporate bureaucrats who answer to capitalist employers put more stuff in the super market aisle than apparatchiks who answer to commissars.

...one has more recourse under the latter, given the current oligopoly regime.

I don't know what "has more recourse" means. I would need an example of a real-world commercial situation in which the "current oligopoly regime" left one with fewer economic choices than another regime.