People will never accept this theory because it means having more sex is giving us more cancer. Instead they'll say our diet is worse (it isn't) and that we're

People will never accept this theory because it means having more sex is giving us more cancer. Instead they'll say our diet is worse (it isn't) and that we're exposed to worse chemicals (we're not) than 70 years ago. We're definitely having more sex but that's not allowed to be a theory. It's like theorizing that cars are killing flying bug populations-- it's just a non-starter. Come up with something else.