Somebody’s got to do it. That’s the takeaway from “Death Wish,” (my former employer) MGM’s alt-right remake of the 1974 Charles Bronson “Mitty-with-a-Magnum” vigilante classic.This human-prey shootout was originally scheduled for release during the Thanksgiving weekend, following the Oct. 1 Las Vegas country music concert massacre.The film’s debut was delayed until March 2 — 16 days after the Feb. 14 Parkland, Fla., school shooting. Hardly an improvement.One can argue …