How about looking at it in terms of economic motivation? For certain types of people (arguably, most people), the GPL provides incentive to create free software where otherwise one wouldn't have bothered. Without the GPL, some of them might begrudgingly release code under a public domain-ish license, but most these people would either be coding proprietary software or not at all.

Which world would you rather have? A world with the GPL as a licensing option, or a world without it? The first world has more free software available, software that respects the rights of the user instead of trying to control the user through EULAs and insidious distribution terms. Regardless of the moaning of anti-GPL types like yourself I'll take the first world where I have more choice as a user and as a creative producer. Begrudging others of their choices when it comes at no cost to you is simply ridiculous. Nobody is going to be sympathetic to your whining because you can't have others' work on YOUR terms.

Score:4, Interesting