He has personally and intentionally used racially charged rhetoric throughout his campaign. He started his campaign by calling millions of hardworking Mexicans "rapists, murderers and drug dealers". Then he wanted to bar EVERYONE from a major religion from entering the US. He initially lied about not knowing who David Duke is. He said a judge, who was born in America and has been very hard on Hispanic drug dealers, couldn't be trusted to be fair in court due to his parent's homeland. He hired as CEO of his campaign a person who runs a website that is the home of the racist alt-right. He insinuated all blacks live in poverty, have no jobs and aren't educated.
These are merely a partial list of his "greatest hits" of this campaign. There's much more.
To say Donald Trump hasn't intentionally created racial and religious divisions in our country is nonsense. You can't be honest and not admit his campaign has encouraged hared and division.