From a deontological perspective, what he did was terrible. From a utilitarian perspective, what he did was in order to enable a civil war which will kill thousands of people and drag the continent into chaos which it really can’t afford right now.
The thousands that would die in a civil war are trivial compared to what the white walkers could do, and Stannis winning the civil war is the best hope at stopping the white walkers.
From a deontological perspective, what he did was terrible. From a utilitarian perspective, what he did was in order to enable a civil war which will kill thousands of people and drag the continent into chaos which it really can’t afford right now.
The thousands that would die in a civil war are trivial compared to what the white walkers could do, and Stannis winning the civil war is the best hope at stopping the white walkers.
He seems to think that. I think they have a much better chance of stopping the white walkers if Stannis allies with the Lannisters.