The Catholic Knight has a great analysis of this video.
He gives three reasons why the number of Muslims are growing in America and their solutions:
1) The single greatest threat to Christianity in the Western world is not Islam. It's not militant Secularism, Communism, Fascism or Marxism. (Though these are all great threats!) The single GREATEST threat to Christianity in the Western world is none other than ARTIFICIAL BIRTH CONTROL or ARTIFICIAL CONTRACEPTION. For decades now, this is been reducing the size of Christian families, and thereby limiting the number of Christians repopulating the Western world - even the United States. The solution to this problem is simple, but involves sacrifice, and it is mainly the burden of today's young married couples. The solution is to START HAVING BABIES AGAIN! Ideally, Christian families should have no less than four children - three at an absolute minimum. The more the better though, and this serves a great purpose. By having more children, Christians are contributing to securing a better future for any and all children they have. The reason for this is simple. How comforting is it to have just one or two children, knowing that those children will inherit an Islamic majority in the distant future? By the time they're grown, and have children of their own, Sharia law will be a daily part of their lives, either directly or indirectly. Wouldn't it be better to have more Christian children now, thus reducing the likelihood of an Islamic majority later? The fact is our government will not import more Muslim immigrants from Africa and Asia if it already has a plentiful taxable population already here in the United States. Uncle Sam just wants his tax revenue. He doesn't care if it's Christian dollars or Muslim dollars. He just wants the dollars! When Christians depopulate, through artificial birth control, Uncle Sam has to get his money from somewhere. If we Christians won't produce tomorrows taxpayers, then Uncle Sam will import them from wherever he can, and there are plenty of Muslims just itching to get into the United States.
2) The second greatest threat to Christianity in the Western world is failure of parents to pass on the Christian faith to their children. Practice Christianity in your home, and be sure to transmit the faith on to your children. There is no use having more Christian children if they're only going to lose their faith as adults. Failure to practice the Christian faith in your own home may very well result in Muslim, Pagan or atheist grandchildren.
3) The third greatest threat to Christianity in the Western world is the failure of Christians to share their faith with non-Christians. Evangelize! And when necessary, use words! There is nothing wrong with befriending your Muslims neighbors. I'm talking about real friendship here! I'm not talking about making friends so you can preach at them. If you befriend your Muslim neighbors, the evangelism of your kindness will speak more to them than anything else. There is no need to pester them about religion, but at the same time, there is nothing prohibiting you from sharing it when the legitimate opportunities present themselves.
H/T The Catholic Knight