Cauf approaches it from an entirely secular angle I know, but it got me thinking about the differences in religious doctrine, and how the different groups may not be able to coexist based on that alone. Honestly, I don't even know what questions to ask here, but I know this is about more than just immigration.
Edit: I figured it out. How should Christians respond to a religious war against them, not just from the outside, but from the inside? Suppose, for example, a large group of people move into your community and start saying some un-Christian things in church, with the intent of corrupting the faith? Do you gatekeep, and if so, how?
Second edit: when I say "church," I don't mean a dedicated religious building, I mean any gathering for spiritual study. In fact, forget my original question, it was late, my mind has been a bit foggy from lack of sleep the past few days. This really isn't about arbitrary physical boundaries anyway, this is more about ideas. One reason to be wary of massive movements of people is the ideas they spread, so how do Christians keep bad ideas in check, both within and without? I hate to get all mediaeval here, but what is the proper approach to heresy? By the way, it's not just Christianity that needs an answer; all three of the Abrahamic religions have been infiltrated by esoteric cults.
Well, looking to the Bible and the instructions of Christ, we are to turn the other cheek, return good for evil, and bless those who curse us. Those who bring false doctrines are to be confronted with Scripture. The worst possible punishment is essentially shunning those who insist on being disruptive to the congregation. Feel free to show otherwise of course.
But this whole matter is hardly analogous to the issue of immigration, and the political discussion is a separate topic entirely. The church should serve as an antithesis to political coercion and pride. The goals are different. The means are different. Our kingdom is not of this world and our ways are not the ways of man. We strive to be better.
I was afraid you'd say that. I will forward this to Alexander Semenyuk, maybe we can get a slightly different perspective here. I had mentioned to him in a conversation that I had intended to do a deep dive into Orthodox philosophy, since I own a copy of The Philokalia but haven't read it yet.