No, the military is there to protect the people, not just the wealth. So your post seems like it's trying to rationalize a not-up-for-debate position, rather than actually reasoning based on reality. Georgism claims to be motivated by compassion for those who are at the mercy of rentiers, but your position shows an immense lack of compassion. "Let them flee to a different country" is the most cold-hearted thing I've heard in a long time.
Second: that wasn't my point. My point was, let's see the plan where you actually produce $800 billion (or whatever the military budget is) just from a land tax. Let's see what the actual rates would have to be, and what the effects of those rates would be.