So shifting the discussion towards that rigid quantitative numbers is shifting away from where the conversation should be. That’s been my point this whole thread.

You’re implicitly assuming that there’s one place that this conversation should be. MY point this whole thread has been that “where the conversation should be” depends on your audience. To repeat myself, “if your target audience consists of people who already agree with the basic economic principle, then by all means, add as much nuance as you like.”

If your goal is to be persuasive, you need more than just being right. OP is not about the pure distillation of facts. OP is about how to be persuasive. And he’s right. That IS something that can be persuasive.