Thanks for clarifying! I've only done the process in japan. We are dealing with locals for the visa process and sponsoring foreigners but will concede ignorance on permanent residence. Thanks!
That being said, your reply seems a bit "binary": https://news.ycombinator.com/item?id=15016955
I don't seem to be completely wrong according to your comment here? The green card doesn't seem impossible, but I won't exactly claim to be an immigration lawyer.