I think it says that our minds have the capacity to do a lot of good things but also bad things, "you made the weapons for us all" means that we made the weapons and we are not taking the responsability to use them correctly; for self protection. And the "just look at us now" is telling that we have turned out wrong.
I think it says that our minds have the capacity to do a lot of good things but also bad things, "you made the weapons for us all" means that we made the weapons and we are not taking the responsability to use them correctly; for self protection. And the "just look at us now" is telling that we have turned out wrong.