All non-whites living in white nations are an inherent threat to Western Civilisation and the long-term integrity of the White Race. Every single non-white individual has a vested interest in continuing the ongoing flood of non-whites into our nations, as they themselves are a product of this system of mass-replacement. Non-white immigrants, even their kids who have grown up in our nations and have "integrated", so to speak, have absolutely no deeper connection to the European identity, culture and struggle that has defined our nations and people for millennia, and they thus have absolutely no capacity to preserve our civilisation, and absolutely no interest in ensuring the survival of our race. It was the white race that built Western Civilisation - our culture, our vigour, our unique drive for greatness - and it is for this reason that we are the only ones capable of maintaining it. Civilisations draw their strength and spirit from the race that produced them, not the other way around. If ones race dies out or gets replaced, so does their civilization. If these foreign races aren't passively contributing to the dilution and cheapening of our culture and the decline of our civilisation, they are actively participating in its demise by treating the majority with contempt and scorn, and campaigning to promote the interests of their particular minority group over the interests of the majority’s, which in this case, is constituted of white Europeans.
Non-whites forever remain foreigners living in nations which are part of a civilisation their people had no part in constructing or defining, and thus in order to solidify their presence and secure themselves a “right” to stay, they demand the nation be redefined in order to incorporate their non-white racial group, as to destroy what it original represented and stood for in the first place. The nature of human races and ethnicities is inherently tribal, and thus, any sizeable presence of foreign racial groups in a host nation results in these minorities promoting their own in-group interests over the majority's, which always constitutes further non-white immigration and the further deracination of our societies. As non-whites continue to form bigger swathes of the population and displace the native whites, they flex their ever-growing political muscles to put fellow non-whites into positions of power who will naturally further the interests of the growing non-white minority. Bit by bit this process will continue until entire cities and communities are unrecognizable from what they once were, and all original aspects of the host nation's cultural and racial identity presence have been completely replaced.
Another side effect of the left’s beloved “diversity” is the break down of social trust, cohesion, and overall happiness, and the complete negation of any racial identity of the host white population. Diversity both causes and exasperates the decay of our unified cultural and racial identity based around the shared history and struggle of our people over the millennia, as it turns our nations into essentially dumping grounds for people from vastly different racial groups, cultural backgrounds, and historic identities all of whom lack a deeper uniting bond with the host white population. The result is our further decline into the nihilistic, decadent, hyper-individualist and consumerist societies devoid of any true cultural expression or racial identity we see today.
This trend of non-white immigration and “integration” that is ongoing in all white nations, if left unchecked, will result in the complete eradication of all remaining vestiges of European Civilisation as our race continues to decline in population size. These foreigners will never have always hold their own in-group interests above ours, and thus they will happily put their own racial group's interests before the preservation and propagation of our unique civilisation and race.