I have actually used a version of the question in the OP but have not had much success.
Why? Well, despite people saying that it was a good question, or that they never really thought about it, they are not in the least bit ready to think independently. I've received replies such as, "Despite that, I still believe the FDS is doing an excellent job, IMO."
How can you possibly reason with that?
Again, going back to an abused woman scenario. You tell her to leave him as well as the reasons why. She says she never thought about it "that way" but still blames herself for provoking him and at the same time even praises what a hard worker and good provider he is.
You can't reason with that.
A person has to be ready to wipe the crust off and allow the critical eye to open. Our efforts are but an eyedrop on that crusty eye. It may penetrate, but the person still has to make the effort to open their eye and see what's the reality. (Sorry for the crazy analogy. LOL)
CoC