Consider that if we did live in such a cooperative paradise moon exploration might not have happened at all. Records of the JFK administration show that he did not care particularly about space at all - he just didn't want to lose to the Russians. I don't think that much has changed in sixty years. Human fear, envy, and greed has pushed us for millennia and will continue to do so.
In other words, I think there's an efficient frontier between cooperation and competition that results in the greatest progression for humanity as a whole. While I too would much prefer for astronauts and taikonauts to land together on the moon, I'd rather them land separately than not at all.
