So before I get started I'd like to make it clear that I for one am totally on board with joining the Fallen, I have nothing but sympathy for their current state and actually kinda avoid killing them in game (yeah cringy whatever). That out of the way there is one big hurtle we'll need to get over before we start shacking hands/claws... The denizens of the city. Now this shouldn't really come as a suprise to you but the people of the city are horrified of the fallen. Despite our actions that in truth have actually created a decline in Eliksne fear, out of all the people in the solar system the remnants of humanity without light have had the most trouble with the Fallen. Since the dark age humanity has been living in fear of the fallen and have passed on this fear to their children (example: the house of devils). The Fallen have brought the city to its knees twice now and have probably taken more lives then the Red Legion, these actions must have rightfully so created a stigma in the eyes of regular humans. So even if by some miracle the Fallen walked up to our door and decided they wanted a peace treaty out of the blue, it wouldn't be up to the Guardians to decide this but the people who reside within the city walls. Despite the travelers work, humanity will always be afraid of something that isn't them, and no matter how willing the Guardians and Fallen maybe willing to unite in the end it's up to the people to decide... And if they say no? We can't really do anything about that But what do you guys think? Feel free to correct me in anyway and I hope you enjoyed this