"The fruits have been catastophically declining birth rates in Catholic countries and a spiritual vacuum now being filled, in Europe, by Muslim immigrants."
Peter O. invokes a very interesting image. The decline in Europe correlates directly to their lack of and abandonment of the traditional faith. Was this faith the pillar on which a people and civilization rest? Perhaps the earthly manifestations are direct manifestations of the spiritual warfare.
Where the West has lost its faith, they are being quickly replaced by people who maintaing and live their faith.
The West's path of leftism, its spiritual suicide, is manifesting itself as a literal physical suicide.