Kag ,  I suspect there are as many causes of  a vote for Trump as there are those who voted for him .  
How to account for the woman who thanked him for making it possible for her husband to go down into the coal mines thus making it easy for him to suffer from Black Lung  Disease which , by the way is even more likely now than previously .  
People who benefit from welfare voted for him .  Where were they when  Trump promised to destroy such programs ?  
The backing of  Trump by Republican Catholic bishops astounds me .