The lack of self-awareness part is pretty important. There is an old saying about people not knowing what they don't know. Today? People don't know an awful lot. It is a combination of targeted historical illiteracy and the endless propagandizing of our population.
The see our forbearance as weakness and it emboldens them to keep pushing. And pushing and pushing, thinking our lack of response thus far means we will never respond. Again, this is historical illiteracy. Our people killed and conquered anywhere and everywhere across the globe and we don't do it anymore because we don't want or need to, not because we can't.
As the unknown author points out, once we step across that line our old lives are over and we don't want them to be over. The man I am now, the product of decades of adulthood with all of the ups and downs, isn't the man needed for the times that are coming. He must be put to death and a new man must rise in his place.
I don't want it to be over either but I also have a limit to what I will put up with. Sure that limit is pretty expansive but it isn't infinite and like many of us I am slowly killing the old man who just wanted to be left alone and replacing him with something completely different. Something that ironically enough will look like the worst caricatures they paint of us. They aren't going to like it.