If things keep going as they are, I will make a multicultural prediction. When tribes try to share the same land, genocide is almost always the result. That is why Mexicans in California are murdering blacks, to expell them.
The more foreigners we let in the U.S., the more murder we are going to see. We let in Hmong, and one kills seven Americans. We let in Muslims, and one in Utah kills six.
That is just the beginning.
The only way a "multicultural" society can work is if the government oppresses everyone. That's why Iraq worked under Saddam.
Believe it, or don't believe it. It's the truth. Multiculturalism is multitribalism, and tribalism is genocide.