Oh, good God, almighty. There is no "secret conspiracy" re: population control. People see the problems that overpopulation helps worsen in places like India, like poverty, malnutrition, infectious disease, etc....and they rightly look for ways to curb overpopulation. It's no secret.
Uneducated people with access to sufficient food tend to have too many kids. That's just how it goes. As a result, infectious disease becomes more of a problem, as does malnutrition. The best way to curb those problems is to teach people about birth control, vaccinate against infectious disease, and give them at least some basic elementary education.
I'd love to go back in time and kill the doctor who published that bullshit article on vaccinations, mercury, and autism. I'd gladly end his life if I could get the mistrust of vaccines out of the alternative health community. It drives me nuts.