I have a good friend who has 11 kids!
Now, some may call it a plot while others would say that its a love of kids. My good friend and his wife are strong Christians too. And there is a very good chance that each of their kids will share their faith and transmit it onto their future families.
While its easy to be frustrated with ideas and beliefs which run counter to Christian values, their is hope in the future- more kids from Christian families.
Chuck Colson (one of my favorite authors and Christian thinkers)calls it the "fertility gap." You need to read his commentary here.