Them: "I have strong feelings that something must be done about X, so let's do something about it!"
Me: "This will cause far more problems than it will solve, because A, B, and C. Let's find a solution that doesn't make things worse in the long run."
Them: instead of rebutting with "Well, why don't we try 1, 2, 3?" they instead say "You're unfeeling and callous! We must doooooo something!"
This is what it sounds like in my head:
Them: "Green Lantern rings are awesome! We need to immediately start making them so we can fight crime and prevent disasters through the power of green willpower!
Me: "While that would indeed be cool, we haven't the first idea how to make something like that. Hard light constructs, a power source that fits in a ring, the interface between thought and action... that will take billions of dollars of research over a scale of years, if not decades, for something that may not even be possible. Why don't we spend that money on a more effective police force and an improved early-warning system for disasters?"
Them: "YOU JUST DON'T CARE ABOUT ALL THE PEOPLE WHO COULD BE SAVED BY HAL JORDAN!"
If you wish, you may substitute "Jedi Training" or "TARDISes" for Green Lantern rings if it better suits your fandom.