Iconoclastic: Science can explain HOW of things, but it cannot explain WHY of certain things
I completely agree with your thread title. It caught my attention. But you lost my by the fourth word of your long, convoluted and rambling essay, which did not--as far as I could tell (and, yes, I read the whole messy thing)--support your thesis.
You clearly do not understand what science is, how it works or what it does and does not attempt to know, understand and explain.
You might find this thread helpful in understanding science: