You're right, these things must be confronted. Someone who talks you into committing the sin of suicide by telling you it is good, IS evil. Someone who kills innocents intentionally IS evil. Someone who takes money given to the poor to feed them and uses that money to purchase weapons to kill IS evil. Charity is a gift to God, those who steal that money, rather than using it for the purpose intended, IS evil.
There is a Catch 22: The Hadith prophesies that the Dajjal will conquer some people with military might, and others by benevolent seduction. Those who follow the Dajjal prosper: abundant crops, good health, long life, material comfort, etc.
Because the US is big and powerful, just about anything we do can be labeled Dajjalic by the fanatics.
But for the ordinary guy in the street, this strategy should work. Economic growth, education programs, medical and nutritional assistance should win them over, and shrink the pool from which the fanatics can recruit.
But it is important that the US be consciously AWARE of this "Dajjal" propaganda while we are doing our good works, or else it can all come to nought.