By Bonnie Stiernberg Music biopics have been big in recent years. From Jennifer Hudson’s turn as Aretha Franklin in Respect to Rami Malek’s Oscar-winning performance as Freddie Mercury in Bohemian Rhapsody, we’ve seen a slew of big-budget blockbusters dedicated to exploring the legacies of some of our most beloved artists. It makes sense to a certain degree, then, that someone would eventually try to make a Michael Jackson biopic — but given Jackson’s alleged history of sexual abuse, is it responsible to delve into the former King of Pop’s story on screen? It sounds as though we’ll soon find o…