Population after Brexit

Brexit has raised the point that the out vote was for migrants being out of the UK.

Wrong 

But here is a demographic truth needing to be addressed.

I face booked this comment to a video of youth abusing people on a bus.

"Here is the math of the global situation in demography. If each male world wide only sired one child in a life time for the next seven generations, 200 years, then population of humans would stabilise. But religion 4,000 years ago or 2,000 years ago or 1,300 years ago counteract this with "go forth and multiply" so the science of migration is one where we males need to sit and talk about agreeing to have one. Women can choose to have as many children as they like as males only have one. Let the conversation begin. Break from this conversation and war will ensue."