As long as the Democrats view everyone  without a college degree as a 'deplorable', the working class will not be voting for them. 

 
And Trump narrowly beat Clinton 49% to 45% with white college-educated  voters.  

And like non-college educated voters, there are more of them than the other kind.  

 http://www.pewresearch.org/fact-tank/2016/11/09/behind-trumps-victory-divisions-by-race-gender-education/