There were never any peace talks for me, since by that point I had assassinated the Emperor (As the dragonborn, I intended to claim the throne, and he was in the way), and then assisted the Imperials in re-taking Skyrim from the Stormcloaks and killing Ulfric in a matter of days. My reason for taking out the Stormcloaks and Ulfric was chiefly because I was an Argonian, and Ulfric and his Stormcloaks appeared to be trying to create Nazi Skyrim. The early warning signs were obvious to me - he skipped the making-them-wear-symbols stage because the non-human races have obvious visible differences from humans in Skyrim, and was already in the separate-them-into-ghettos stage in his capital city (He also had the charismatic leader thing going on).
Yeah I remember how all the altmer and imperials of Windhelm are discriminated against. Oh wait, Niranye's doing well, so is Nurelion(Though he's dying of old age), as is his apprentice, as is the stable master and wife, as is everyone in windhelm who is not dunmer. You know why? It isn't his job to govern them, they were told they would govern themselves and as such had no obligation to the holds. It sucks that the argonians can't come in, but you've got a large population of old traditional clannish dunmer who saw their homeland get invaded and many of their people slaughtered by argonians. Despite all his words, Brunwulf doesn't change a thing about the policies. He even admits that he can't let the argonians in because he's afraid of what will happen to them.
Furthermore, Imperial skyrim does the same thing. Ahtar the headsmen in Solitude notes that Torygg never would've allowed argonians into solitude. The orc at the lumbermill outside town notes that he dreads having to go into town because of the treatment they give to orcs.
The thing is EVERY RACE IN TAMRIEL is typically racist as hell by default. Or did you forget about the argonian exclusive torture chambers in Leyawiin? Or the tendency of most Black Marsh argonians to want to kill and eat outsiders. Or the bosmer and khajiit's typical fueds. Or the altmer's superiority complex. Or the hatred of the orcs by the bretons and redguards. Or the beast race slavery in morrowind. The clannish, and distrustful ways of the orsimer.