This obvious truth is well known. This begs the question "If they know it will fail, why do they keep doing it". The author makes a good case at the end by saying "They were unsuccessful using military [like Napoleon and Hitler] and monetary policy [like the Euro], so now they are radically transforming the demographics. Why? They do this because Christians and believing Jews are naturally distrustful of men and government.
Is immigration working in America?
Stazi Merkel probably supports the same policies the earlier German governments used when they partnered with the Arabs.