Sounds contradictory to http://www.nytimes.com/2016/11/15/upshot/how-did-trump-win-o... for instance, but that's a bit older. Maybe I missed something.
[1]http://pittsburgh.cbslocal.com/2016/10/12/nearly-100000-penn...
So theory is Trump mobilized a ton of voters who sat out in 2012?
Wrong. Trump won the election in a landslide of the electoral college and likely a majority of the popular vote if you audit the southwestern states you abhor to filter out "undocumented people" who voted. That is also not taking into account that Trump primarily campaigned in a small handful of states due to the nature of our electoral system and likely would have won larger in a system without the electoral college. He won the rust belt states which voted Obama into office for 8 years. Attempting to strip his victory from him by making empty statements about the white working class does little to advance any sort of counter-argument to his policies or achievements.
Nixon 1960: 49.55%
Gore 2000: 48.38%
Kerry 2004: 48.26%
Ford 1976: 48.01%
Romney 2012: 47.15%
Trump 2016: 46.17%
And if you see my reflection in the snow covered hills...