The Democrats and their celebrity and media partners have a blind spot that continues to hurt them politically.  They think the arc of history will vindicate them, but I would argue that the next generation may be more conservative than any we have seen since the 50's.    Meanwhile, completely alienating more than 40% of actively engaged voters will generate a lot of losses in elections large and small.  There are a lot of people holding their noses to vote Republican because of how dismissive the Democrat party leaders are to them.