Of course, there is also intermarriage, which is high between Anglos and Hispanics past the second generation, as well as between whites and Asians past the second generation.
Again, I'm not sure what you mean by "fear".
All I'm doing is telling you what is going to happen.
You are certainly free to ignore my warnings, but even if you do choose to ignore my warnings, it doesn't matter in the big scheme of things - unless you die unexpectedly in the next few years, you WILL live to experience the horror of the demographic unraveling of the USA and its socio-political implosion - that much I can guarantee you.
what are you going to do about it?
Sadly, I'm worried that much of the remainder of my life will be devoted to the attempt to form a successful secessionist movement, and to establish a truly free republic in North America which will persist after the [impending] collapse of the old USA.
That's certainly not what I had wanted to do with the rest of my life, but it's difficult to read the tea leaves and come to any other conclusion.