Well this belief is kind of the whole point, the very thing that the idiots spewing their rubbish in game actually believe. Racism, as we understand it in 2018, was not 'high' in the 1860's. Educated people in 2018 do not believe that god made one race better than any other, which is what educated men believed back then. Don't forget, women were a lesser form of being back then as well, yet nobody in WoR is running around shouting about that. It has nothing to do with 'getting into character', and everything to do with basic ignorance. These idiots want to annoy you, so don't let them, open up the players list by pressing the TAB key and mute them.