Andrew Dominik’s “Blonde,” streaming on Netflix September 28, is meant to be a tough sit, endured, more than a harsh, often miserable life, examined. Wrong mission. But mission accomplished. Any halfway-serious exploration of the Marilyn Monroe story must reconcile the endurance test of her 36 years ― so much abuse, humiliation, infantilization, addiction and ultimate ruination — with the public-facing legend. Under the same skin, she was many things. A human being; an honest, often affecting actor; a deft, warmhearted comedian; and an undeniable star, struggling for respect and for deliveranc…