I remember this argument, and it is a good one. But in THIS situation I think that, were the majority of women given weapons there would be a completely different scenario over there. It would not be a group holed up in a compound fighting against a powerful government with huge, advanced, militarized agencies at their disposal.
In some situations I agree completely with your point, but not in all.
I am wasting my time. But more, I think, because there is so little chance of what this article proposes happening.