“Peacemaker has a lot of issues,” James stated in an interview with TVLine. “And I don’t sit down and say, ‘Well I’ve got to make this character likable.’ I just sit down and try to make a character as fully fleshed out as possible.”
As a character, Peacemaker is fully aware of his flaws. In his most private moments, he acknowledges his own toxicity and is deeply affected by his traumatic childhood. James Gunn wants to make sure he confronts those emotions throughout the show.
Source: https://www.distractify.com/p/is-peacemaker-racist