So it's just that easy, huh? Crank out a kid and 50 years later he will certainly be president and be able to destroy the U.S. Amazing that Hitler or Stalin didn't try it. </sarcasm>
I think it's amusing that this is the sort of thing that keeps birthers up at night.
Anyone hatching a plan to destroy the United States with their progeny 50 years down the line could just as easily become a citizen first, therefore making the child a natural born citizen under even the strictest definition.