You know, when I read your first comment I had a good feeling, which is why I thought I should follow you. You've certainly affirmed it! I absolutely hear what you're saying, minus having any understanding of Nietzsche (except what you've shared, of course). You inspired me to pull out my DBT binder to find the section on radical acceptance, and sure enough, I found the part that really resonated with me:

"Everything should be as it is." I remember this really offending some people the first time they heard it, because to them it said that they deserved what they got. But what it meant was that there was no point in saying, "it shouldn't be this way! This shouldn't have happened!" because every action and choice and coincidence led to the current state in which they found themselves - every aspect of their current state had a cause. There weren't any moral implications or value judgements to the statement, and once that was understood, they could accept what was happening to them.

Of course, key to this is that radical acceptance does not equal passive resignation - as with all things DBT, it was just one tool with which to deal with life.