You learned your text properly from rms.
But maybe, sometimes questing things in a rational way is good.
You can't messure freedom in dimensions of "how many options do I have" -
that's right.
But - here comes the point - if *someone* (not the laws of physics, not my
financial limitations) takes away choices from me which I originally had,
then he is controlling me.
Recall what rms said in an interview about freedom:
"I'm not free if someone makes me do this, and not do that".
Taking away choices in the sense we were talking about clearly makes me do
this and makes me not do that.