I doubt DC or WBD really cares. They wouldn’t have made Tim or Jon bi if they thought that kind of backlash was worth worrying about. Hell Gunn plans to adapt the Authority which has Apollo and Middy, two gay men who are married and key members of the team. That’s not the kind of team you lead with if you’re worried about conservative backlash.
And President Luthor is too good an idea to never use.