What I really do not understand is these groups like 'Blacks for Trump' or 'Muslims for Trump'. This sounds very counterintuitive to me.
Now coming back to your text and to the title of the post more precisely, I am not sure why the entire white race should apologise here. The largest fraction of white people has nothing to do with the US elections and are thus not concerned. I am a white guy (living in Europe) and I don't feel I should give apologies to anyone from Trump victory.
(Note that this is different from the message from B. Botox who is asking apologies from people who are trying to convince her about the level of hate in the US).