The Free Joy State wrote:"Pro-free" would, as I pointed out earlier, upset pro-lifers even more. As, if "pro-choice" were to become "pro-free" (and "pro-free" would be a silly phrase, and not only because it is painfully ungrammatical) "pro-life" would -- by implication -- be "pro-slavery".
That's why both the current phrases make so much more sense.
I largely agree with you on this point.