He's up in arms over his white daughter.
Shoulda used some of that anger at those cacs that snatched up Walt.
She was created
specifically to portray Africa and African-Americans.
She was introduced alongside Colossus (Russian) Nightcrawler (German) Thunderbird (Native American) Banshee (Scottish) Sunfire (Japenese) Wolverine (Canadian) Psylocke (British) etc as the Uncanny X-Men to replace the purewhite original X-Men (Beast, Angel, Iceman, Jean).
The only person on the original team they kept was Cyclops.
Her entire initial design and purpose was simply to be black.