Earlier quoted context omitted.
> The USSR has tried this. Lets not. The USSR tried lots of things we do successfully. This is actually something governments have a proven ability to do, at least in some contexts, without becoming a corrupt boondoggle. https://en.wikipedia.org/wiki/Defense_Commissary_Agency
Yeah it was so successful that people would line up around the block for bananas the one time a year. Or when boots came into the store you'd pick up whatever size you could, as you'd trade later. (true stories)
> The USSR has tried this. Lets not.
would rule out things like "going to the moon" or "building roads". It's a pretty useless rubric.
I am not doubting the USSR fucked all sorts of things up. I'm doubting that that inherently means those things must be impossible.