A far better idea, IMO, would be for Exodus International to have made a large number of handouts available explaining the destructiveness of the so-called "gay lifestile" (better called Same-sex Attraction Disorder or SAD) so that Christians could hand pamphlets to everyone who was silent. Since those using silence would be self-identifying, there would be no totalitarianism or "terrorism" involved.
Do not try to overcome evil with evil, but overcome evil with good.
Shalom.
Open Letter (to hand out to Day of Silence victims)
Talking Points (feel free to print this off and hand out)