As a person who opposes school-required vaccine for Gardisil, and who has written about the somewhat inflated claims, and the higher-than-normal risk/reward curve, I still have to say that your comment is ludicrous.
It is NOT a "serious threat to life" -- There have been 34 million vaccinations, and there are 68 reported deaths. That is "high" to me, but hardly a "serious threat to life". As to your claim that it has no effect on cancer, even it's most vocal supporters admit that it does successfully block several types of HPV that cause cancer, and will prevent thousands of cancers a year.
Strict adherence to a proper diet will prevent all cancers, but how will we bring that about? By government edict? No, that didn’t work, because the govt’s dietary recommendations were actually the causes of most diseases, and continue to be.