The hatred was stated various times in Uncanny X-Men #281. Possibly Emma Frost will be responsible for something happening to Fitzroys ancestors, another explanation might be that Frost and Fitzroy met before, somewhere between his (undocumented) arrival in the present and Uncanny X-Men 281. More.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.