This is funny in a morbid, awful sort of way.
After the Orlando attacks, Al Qaeda is worried that the motivation for its terror attacks might be misconstrued as something other than Islamic Jihad. They want to make it clear that these are not "hate crimes" and make sure that Islam gets credit for these attacks (rather than homophobia or racial animus.) So, the Al Qaeda leadership is encouraging their disciples to target white people, so the attacks will be more clearly seen as Jihad.
Full article here:
Al Qaeda to jihadis: ‘Target white Americans, avoid minorities, because US mislabels attacks as ‘hate crime’