It is disappearing here in the US as well; the number of white children is dropping quickly, and many of those are born to unwed mothers who learned from gibsmedats how to game the system. On top of that, some of those born to married parents then watch them split up...
Good summary.
In my opinion, our country is doomed (in anything like its current configuration) without a massive revival that ends the free-fornication experiment. The data is in: screwing around destroys the country. This is what the Communists wanted all along.