Modern liberalism is at its very core nihilistic. It is unsustainable. All one has to do is look at the birthrates of the native peoples of Europe. All, except for Albania, have below BRR(Birth Replacement Rates). Japan is beginning to suffer from this also as their population is rapidly aging in greater numbers. Crushing taxes, the more radical feminist movements, inflation, offshoring of jobs, soaring costs of anything child-related, unchecked and increased immigration from primarily Islamic nations, disintegration of the nuclear family, embracing and indoctrinating of alternative (and oft bizarre) lifestyles, discriminatory hiring and promotion practices against the native populations, abortion, appeasement of every whim of minority cultural and racial groups, and the gradual reduction and eliminating of Judeo-Christian values from every institution all help to contribute in some way or another to the European peoples and its' nations.
As the population ages, there aren't enough younger people to make up for the taxes and care needed for the elderly. Thus, the imporation of massive amounts migrants from primarily Islamic nations begins. Various European nations have called for the need for even more immigrants because their populations are aging so quickly.
Muslims have a very different attitude when it comes to social practices.....they believe in the traditional family structure. They aggressively expand their religion and culture to other regions of the world, sometimes violently. They are fiercely proud of their traditions and cultures, often holding their values to be superior to all others. Europe seems to be on the opposite end of the spectrum......ashamed of its history, nationalism all but non-existent, ultra-tolerance of even the most bizarre practices, well below BRR, and greatly reduced in power.
And what will happen when Islam becomes the majority in Europe(and it will)? Do you think the new regimes in power would tolerate much if anything of the self-destructive liberals? These Europeans will become a persecuted minority in their own native lands. The Enemy is not at the Gate.....it is already within the city with millions of good intentioned enablers to help them along the path of conquest.