"Do you beleive in the virtue of software freedom? If you think it's okay for
free software to be useable only by a small minority of people, then in
effect you're saying most people should use proprietary software "
This statement is _ridiculous_.
The "virtue of software freedom" is neither usability nor functionality, and
nobody promised to you that free software has any of those two properties.
Developers try very hard to make it happen though, but if they fail - to what
extent doesn't matter here -, they don't "force" people to use proprietary
software because of that.
Supertramp indicated a way how to get the job done with free software; if the
general public isn't satisfied with this, that's unfortunate.
If you argue like that you come to the absurd conclusion that everybody is
guilty of forcing people into proprietary software who does not actively
write completely satisfactory free software;