The philosophical stance of GPL is freedom at the individual human level - the only thing that actually matters if you are part of mankind. Yes, a society where

The philosophical stance of GPL is freedom at the individual human level - the only thing that actually matters if you are part of mankind. Yes, a society where you cannot "choose" to be enslaved is semantically less free than one where you can, but hopefully everyone agrees that for definitions of "freedom" which matter for human beings, the first society is a better choice.