The GPL is about promoting freedom for everyone. Not maximizing freedom on
an individual level.
The GPL's extra restrictions ensure that freedom persists from one iteration
of a work to the next. Permissive licenses do not restrict in this way. And
so are more free on an individual level.
Maximum individual freedom allows the proprietary world to take the free
world's products. And proprieterize them. Here, the free world works for
the proprietary world. And the proprietary world benefits financially,
without the same investment or risk.
Maximum individual freedom reduces the financial barrier-to-entry, for
restricting others' freedom.
His concept of freedom has two effects, and he only talks about one of them:
More freedom for each individual today. Less freedom for everyone tomorrow.