BJ, I think the genesis of all of this was Cali_Dem's OP in May where he dared to note Hillary's

then 87% support from the black community. http://www.democraticunderground.com/10026706470 The responses were so ignorant, privileged, paternalistic, moronic and embarrassing that I did an OP about them in AA a few days later. http://www.democraticunderground.com/118714610

This happened a few months before Black Lives Matter. And when Netroots and Seattle did happen, all it did was blow the lid off what was already a fairly serious problem.

So daring to note Hillary's strong minority support in May started it all imo. That was the start of the "but what has she ever done for THEM??!" and "black people don't know what's good for us" crap. It was also the start of the "Bernie is a civil rights legend" mess that spread all over the Internet and had people of all colors over every corner of the Internet looking at Bernie supporters like this:



It's been downhill ever since.