Gerber life insurance...?

I just recieved my 1,283rd invitation to the program lol. I was just doing some math and realized that for a $35,000 policy, your child would have to live for 136 years before Gerber would even break even. That said, the policy doubles at age 18 (making the mark 272 years) How do they make money on these policies? And they build cash value that you can cash in anytime after age 25?