It is projected that whites in the EU and US will become the minority by the end of the century. In the EU, that transition is expected in the second half of the century. In the US (non-Hispanic) whites will be a minority within a generation and among the newborn, within a year.
In the EU, that prospect is a subject for intense discussions, for example, see The Strange Death of Europe by Douglas Murray (2017). In contrast, the US is still in denial of the inevitable transition. For example, the media addresses immigration issues on daily basis, but discussion of the impending transition is avoided.
The EU is the primary destination of asylum seekers. States in Sub-Saharan Africa cannot feed their rapidly growing populations. Many are under a dictatorship and are known for human rights abuses. Thus, immigrants from these countries satisfy the asylum seeker criteria. The United Nations projects that by the end of the current century the Sub-Saharan African population would grow by some billions. At present, there is no real or conceivable mechanism to stem the expected tidal wave of migration. Include the fact that immigrants during the initial two generations double in number, while Europeans, like Americans, do not even reach replacement levels: the demographic shifts will be massive.
Murray in his book addresses only Europe and only from the perspective of a journalist. However, the issue applies to Western culture on both sides of the Atlantic, and the root cause is not political in that people did not vote for this consequence. Western culture has been dominant for the last
100 years. The only explanation for its current predicament is that it is the consequence of principles implicit in the philosophy ascribed to in the West. Philosophy is the only knowledge area that can address this failure of self-preservation. With authority comes responsibility. The philosophic community has let us down by retreating to the position of a spectator on vital issues of survival.
It is now imperative that the philosophic community confronts the challenge of bringing the foundation of knowledge up to date and, recognize, for the first time, the innate commonalities of human nature, and derive survival imperatives to guide policy.