There would cease to be a need for humanity as well.
Even animals use crude emotion to govern their actions. Without emotion there truly would be absolutely no reason to exist. Why would we want to progress in science if we had no emotion? What would stop people from just laying on the ground and doing nothing? There simply would be any reason to do anything.
Truly, communism is seen as negative in of itself, that is only true of the type of government it spawns. It wouldn't need a totalitarian government if people had no emotion, ambition, or greed. But, without emotion (like I said before) there is simply no reason not to just lay down and die.
I can't help but feel that you are trying to make some kind of point... If so, then out with it!