I honestly don't have an answer, don't think anyone does. It is increasingly difficult to move around in this country, especially in the South/South East. As the world population keeps booming, imagine how big it would be if we hadn't had the black death in this country, world wars and the Chinese hadn't imposed their rules on childbirth etc.
If we were badgers, we'd be culled, right? And we're so advanced now that we're living much longer and curing all the diseases that would have wiped us out, even 40/50 years ago - which is good. Maybe we should ship some more people to the vast, uninhabited bits of Australia (and the US)