No, I'm repeating the "The net effect is negative for more people than it's positive for." argument again.

You are saying that "Anything we do is better than nothing." Which I might agree with in certain situations, but this here is the wrong solution to the wrong problem.

Psychologists call this black or white thinking - in this case, either something works perfectly or it's useless.

Next to impossible to get a person who believes this that they're engaging in a cognitive distortion though. I tried the same thing you're doing, once. I gave up. They will die on this hill and then wonder why they lost long after everyone else had moved on.

It's possible to make effective arguments in line with their values. They simply don't want to be helped.