Which idea is often rejected by white nationalists?

The idea that is often rejected by white nationalists is the concept of interracial partnerships. White nationalists typically believe in the preservation of what they consider to be a "pure" white race and often advocate against relationships between individuals of different racial or ethnic backgrounds. This rejection stems from a desire to maintain racial and cultural homogeneity, which they believe is threatened by interracial unions.

In contrast, racial superiority, inclusion of diverse cultures, and acceptance of non-white immigrants run counter to the core beliefs of white nationalism, as these ideas promote diversity and equality among different ethnicities. By embracing interracial partnerships, society moves towards more inclusivity and acceptance, which is fundamentally at odds with the ideology of white nationalism. Thus, the affirmation of interracial relationships signifies a challenge to the white nationalists' objectives and worldview.