Kwanzaa is a pseudo-Marxist scam invented by an ex-con, having nothing to do with any real African traditions, but economically supported by the greeting card industry and the demented PC liberal charlatans.
Real Africans laugh loudly when you try to explain the incoherent Kwanzaa mumbo-jumbo.
You can't blame the greeting card companies. If there are enough deluded people out there to make the production of such cards profitable, it's just plain old capitalism at work.
It's purpose was to separate Blacks from Christ. Pure and simple.