The preservation of white culture is a subset of the preservation of one's culture regardless of what happenstance determined that to be. It strikes me as rather hilarious that no matter what one's culture is it always is the best and needs to be preserved above all others and especially at their expense. Imagine how boring the world would be if everybody was an proud boy elitist white Christian male or solely anything else.
But what can you say. When you feel like the worst person in the world, and have no real self respect, you have to grab onto some handy external to justify your existence. Sad, but practically universal. Without something to cling to you would have to face what you feel.
There is one simple solution to all human problems of the identity type and it is to relax and be happy. The problem of course is that the last time you were relaxed you were killed. It was a death sentence because it forced us into a state of perpetual vigilance. PTSD is what happens with life events crack the defenses but insufficiently to heal. Not wise to try to close Pandora's box or open it suddenly with support and knowledge.