According to the United Nations, the "indigenous peoples" of a nation have the right to "self-determination as a people", and "not to be subjected to forced assimilation or destruction of their culture"

So why are the indigenous white peoples of the European nations denied these rights?  Why are they forced to be dispossessed of their lands, and forced to assimilate with hoards of non-white immigrants?



Source: United Nations Declaration on the Rights of Indigenous Peoples



Article 3 

Indigenous peoples have the right to self-determination. By virtue of that right they freely determine their political status and freely pursue their economic, social and cultural development.

Article 4 

Indigenous peoples, in exercising their right to self-determination, have the right to autonomy or self-government in matters relating to 4.Resolution 217 A (III). 5 their internal and local affairs, as well as ways and means for financing their autonomous functions.

[...]

Article 8 

1. Indigenous peoples and individuals have the right not to be subjected to forced assimilation or destruction of their culture. 
2. States shall provide effective mechanisms for prevention of, and redress for: 

(a) Any action which has the aim or effect of depriving them of their integrity as distinct peoples, or of their cultural values or ethnic identities; 
(b) Any action which has the aim or effect of dispossessing them of their lands, territories or resources; 
(c) Any form of forced population transfer which has the aim or effect of violating or undermining any of their rights; 
(d) Any form of forced assimilation or integration; (e) Any form of propaganda designed to promote or or incite racial or ethnic discrimination directed against them.