The pointe is that that you the moment you want to prevent the action, you have found the public siding with the action. The war is on the mind, you need to get regular people to hand their keys to the autocrats. Infowars, indeed.
Try stopping Hitler from rounding up Jews. Or try to stop Trump's unlawfulness. You are invariably too late by then.
"too late" is relative. Hitler lost after rounding up the Jews and killing 6 million of them. Or rather, Hitler and his many collaborators, both government employees and civilians, did.