BLACKS IN AMERICA have suffered an endless series of insults and degradations, the latest of which goes by the name of Kwanzaa. Ron Karenga (aka Dr. Maulana Ron Karenga) invented the seven-day feast (Dec. 26-Jan. 1) in 1966, branding it a black alternative to Christmas. The idea was to celebrate the end of what he considered the Christmas-season exploitation of African Americans. According to the official Kwanzaa Web site -- as opposed, say, to the Hallmark Cards Kwanzaa site -- the celebration was designed to foster "conditions that would enhance the revolutionary social change for the masses of Black Americans"...