They have been bullshitting us about this since the beginning. All they had to do to offer an alternative was let us run. They KNEW, they have a No Kill audience and addressed this several times, promising it was in the game.
Hell, in Deus Ex I ran from Walton Simons, Gunter and let Anna live on the Plane and the Train Platform just so I could use the Gas Grenade on her in the UNATCO office. It forces her to unlock the door, if you do it correctly. No Kills.
The people can always be brought to the bidding of the leaders.That is easy.All you have to do is tell them they are being attacked and denounce the pacifists for lack of patriotism and exposing the country to danger.It works the same way in any country.