Sanity and madness - it depends on what we do with "Do to others as you want them to do to you"
It's not for nothing that Jesus and Hillel said that this is the law and the prophets. We blow it off, and we're just insane, which is why the American empire and its people are insane. We go by this rule - the punchline of Jesus's teaching on prayer - and everything comes clear.
Simple example. If Russia spent $5 billion to subvert the government of Canada and install an anti-American regime that wanted to join a military alliance with Russia and China, and post nuclear missiles aimed at the US on its territory, and which attacked, say, British Columbia and killed several thousand people while driving several hundred thousand into Washington and Oregon, what would we expect the US to do about that? What is wrong with Russia doing about it anything up to what we would expect the US to do?
Here's another simple example. Even now, the US population today is not short of people walking around with guns and criss-crossed guts. Some of them blew up the federal building in Oklahoma City and killed 168 people, besides other assorted killings over the years. Now let's suppose the People's Liberation Army occupies the United States and installs a Chinese puppet regime in DC - a sectarian regime oriented to minorities that have been shut out in the past, as the US did in Iraq. Let's suppose further that the PLA was routinely killing US civilians, breaking into their homes at 2 AM, raping women, and dragging people off to torture centers, while arming and training black and Latino militias to fight against the resistance of formerly dominant ethnic groups such as white folks, as the US did in Iraq to the formerly dominant Sunnis at the hand of Shi'a militias.
What would happen in the US under such a regime? Would there be shootings, roadside bombs, and suicide bombings - keeping in mind that the very popular movie Independence Day featured a heroic American suicide bomber?
Now if we would think it improper for us to be done this way, what excuse does an American Christian have to think that it's anything but abominable to do it to anyone else? Why should we not expect people to respond as we would?