Like a crude and profane marriage between “Falling Down” and “Joker,” movies about aggrieved and disenfranchised American white men seemingly justified with their rage about a cruel and unfair world, director Derrick Borte’s reminiscent revenge thriller “Unhinged” is deeply misguided. “Unhinged” wants to map a similar Venn diagram sweet spot where the Worst Day Ever ™, a cruel lack of empathy, and selfish incivility trigger a point-of-no-return path to unholy violence and retribution.