Jesus said to go out and teach all nations in the name of Christ. He did not say to give over your countries, become multicultural, multilingual, and forget your heritage.
You have a rather perverted view of God. Share with them the Word, your God, but not your goods nor your country? I don't think so. You're no better than the WASPs of the last century that wanted to keep the Irish out. Read your history and your bible.
I never thought I'd come across anyone fruitier than Marsh Applewhite, but now.... I have.