The point of copyleft is to protect the continued existence and welfare of such a commons. I'm not even necessarily saying it is the only way to achieve a healthy free commons, I'm simply explaining what GPL is for.
That said, do you think it is in fact protecting the user from exploitation, or promoting the health of a free commons, to use "free" software in nonfree products which do not provide their source code to the user nor guarantee the user's ability to study, extend, and modify the software that they are using?
I think the argument for Free Software is at the very least strong and good. There can be other approaches to solving the problems FSF wants to solve, too, but it is a totally valid and non-debatably historically useful position at the very least.
That said, do you think it is in fact protecting the user from exploitation, or promoting the health of a free commons, to use "free" software in nonfree products which do not provide their source code to the user nor guarantee the user's ability to study, extend, and modify the software that they are using?
I think the argument for Free Software is at the very least strong and good. There can be other approaches to solving the problems FSF wants to solve, too, but it is a totally valid and non-debatably historically useful position at the very least.