Assuming for a moment the Kobe parallel to be fair, look at how L.A handled their situation.
They didn't make any hasty moves, took care of their problems in house, and made the finals. Trading Kobe to Mars or Pluto maybe would have "taught him a lesson", but there's more to life than putting people in their place. Things like a +.900 OPS.
That being said, this isn't the happy go lucky Manny persona he's been trying to put forth the last few years, and makes me wonder if he's been pulling stunts like this the entire time.