A large part of Trump's campaign was racial animus.  This is something that you cannot ignore.  He started his campaign suggesting that Mexicans are rapists, suggested completely banning Muslims from this country, and said more numerous things about immigrants and minorities.  Trump came to prominence by questioning Obama's birth certificate and played the same game in the primaries against Cruz and Rubio.  That was a huge dog whistle.  Trump created a really bad atmosphere where it was okay to blame people who don't look like you or who don't have the same religious background for your problems or who might be immigrants.  I've heard/ read some scary stories of children bullying Latino classmates and saying that they are going to be "deported" and the like.