Affirmative action is a bit of a pickle, but I couldn’t find anything conclusive that it belongs to a party. Through history it has had it’s share of ire and support of both sides, true.
But fundamentally, it’s not supported. Just as Republicans have said with less and less conviction that refugees and immigrants deserve to come here legally, I suspect affirmative action to also slowly die.
I cannot say which party will be the first to draw that line but I suspect it will be Republicans given some Democrats being quite conservative to 20th century polices and laws while some Republicans wish to take us back to an 18th century constitution. A fact that must, at the very least, make people who are not white straight old rich males... a little nervous.