In fairness, people aren't great at deciding what the right thing is, but I still agree with you; most people are not wrong about most things. For example, boycotts would work. So well.

OTOH, every abortion clinic would be bombed before the week was out; terrorist attacks would probably go up generally, as would revenge killings. You could argue those would have positive net impacts (since terrorists would presumably stop once their demands are met? I think?) but it's certainly not one-sided.