What If Justice League: Mortal started the DCEU?

The DC Extended Universe in my Marvel/DC Multiverse (link here: (https://ideas.fandom.com/wiki/Marvel/DC_Multiverse_%28_xitzjohn_%29).

Phase 1
Release Date: June 14, 2013
 * Justice League Unlimited

Director: Zack Snyder

Rating: PG-13

Plot: Batman (Ben Affleck), Superman (Zachary Levi) and Wonder Woman (Gal Gadot) lead a group of superheroes, the Justice League, consisting of The Flash (Adam Brody), Green Lantern (Chadwick Boseman), Aquaman (Charlie Hunnam), and Martian Manhunter (Peter Mensah) into action. When it’s revealed Batman had an affair with Talia al Ghul (Berenice Marlohe), the League begins to develop distrust in him. This may be the Justice League’s greatest threat, though, as they seem to have met their match once and for all.

Protagonists: Bruce Wayne/Batman, Clark Kent/Superman, Diana Prince/Wonder Woman, Barry Allen/The Flash, John Diggle/Green Lantern, V'iktorr J'onzz/Martian Manhunter, Wally West/The Flash

Antagonists: Talia al Ghul, Maxwell Lord