It doesn't surprise me if it did - but I never heard about, and it sounds kinda doubtful.
One flaw I see in the historical reporting here is it didn't take a coloring book to stop the white people from listening to the concerns of black people back then. The Black Panthers came into power BECAUSE the white people weren't listening to the concerns of black people.

I don't know of any white groups who worked with and supported the Black Panthers - do you?