1) Trump has said Mexicans are drug dealers and rapists, Puerto Ricans are lazy, he'd rather have immigrants from Norway than Africa, just to name a few that spring to mind. His attorney general said he thought the KKK were good people until he learned they smoked pot. He said the white nationalists in Charlotte were good people. He's had the Justice Department take the position that it's okay to fire people for being gay and transgender. He keeps appointing homophobic people to various posts (here's one example). And don't forget "grab 'em by the pussy". This is far from everything. (I know I didn't provide links to everything, but I did provide links for the things that weren't major news so you might not have heard of them.)
2) As I said, he lost the benefit of the doubt a long time ago.