So as not to lose seats in the mid-term, properly understanding factors that led to Hill's crushing defeat is YOOOGE for the Dems. With time now for the analysts to crunch the voter data there is growing evidence that the perceived narrative......Hill not motivating the base combined with Trump motivating a new class of "deplorables"......may not be quite true.
Yes, had Hill paid more attention to the base in places like Michigan there is a good chance she could have overcome other factors in the vote, so turnout for the Dems was a significant factor. However, what clinched the victory for Trump may not be what the Dems would like to believe.
Data suggests that in many states Hillary WON a majority of new voters. So, if it wasn't new voters, the new wave of racist, nationalist "deplorables", that clinched it for Trump what was it? Evidence in the data strongly suggests it was working class white voters who voted Obama in 2012 and Trump in 2016.