The key driver is population growth to prevent collapse. It is this first and then everything else follows as a ‘result of’.
Anti white is driven through the population in order to allow for the cultural shift of immigration to take place. It gets plebs onside to hate themselves.
99% have this totally backwards and think anti white is the leading cause. It isn’t. Population is.
Anti-White leads to a reduction in the White population. The two are connected. But Whites are themselves also to blame for this situation via stupidity and a lack of self-preservation - reference the Banker instigated WW1 and WW2 "Brother Wars", Civil Wars, etc. In the end, all races are related, because all life originated from a Solar Nebula billions of years ago. And our Solar Nebula itself was the product of the end cycle of supper massive stars.
"Our solar system began forming within a concentration of interstellar dust and hydrogen gas called a molecular cloud. The cloud contracted under its own gravity and our proto-Sun formed in the hot dense center. The remainder of the cloud formed a swirling disk called of the solar nebula."

So it does not matter really if Whites are mixed out. The descendants will still be part of the original Solar Nebula.
And Whites will technically not go extinct. Science would be able to bring them back in large numbers if ever needed. And perhaps Russia will be the last Bastion of the White Race. Even though Russia itself already has some diversity and Mongoloid citizens.
All races will probably eventually merge into one mulatto race. But this merging is being helped along / accelerated via people driven by a hatred for Caucasians. Michael Savage years ago pointed to the 4 people responsible for White Genocide. Bella Abzug was one of them. These are the social engineers who were concerned with feminism, fertility/abortions, contraception, immigration, propaganda, etc. I looked for his original video but could not find it.