Obama to world. I like Obama, but I really hate that kind of bullshit rhetoric. It wasn't an attack on "all humanity" it was an attack on France, intended to punish it for real or imagined deeds against Islam. One of the things wrong with Bush's idiotic wars was that they were waged under false pretenses - one of them being that we were trying to bring the blessings of liberty to Iraq and Afghanistan. Incoherent rationales lead to incoherent strategies which lead to disastrous results. As a result, Bush let the perpetrators (bin Laden and Saudi Arabia) escape while wading into the idiotic Sunni vs Shiite conflict with both feet.
It appears that the Paris attacks were done in the name of ISIS, for actions against ISIS, and if so, the appropriate action is revenge against ISIS. We probably can't destroy it, but we could erase its geographic presence. If terrorist get the message that terror hurts their cause, they might hesitate. They will only be encouraged if the response is pious platitudes piled into pyramids of nonsense.
Even rather primitive and tribal peoples understand revenge, but they are rightly suspicious of bullshit rhetoric.