We are leaving on a death culture, we arent reproducing maybe for economic conditions as in most developed countries wages have compressed in real terms and people prefer to have less if none kids than to lower their lifestile below what they were born into, maybe is the anti-family culture that permeates society, seiing the nuclear family as a burden to personal fullment, woman independence, career obstacle, problem for the enviroment or the miriad of other factors.

Importing migrants is just a band aid that moves the problems of our unhealthy society few years down the line, we need to focus on our dying societies.