I view it as this: not everyone that voted for Trump was racist, but every racist certainly voted for Trump.
However, I'd add a caveat that if you voted for Trump, you have to be kidding yourself if you disbelieve that you are at least mildly racist. A person completely devoid of racial prejudice would stand on principle alone in not voting for Trump. By contrast, vote for Trump carries a certain amount of condoning his racist behavior. The person who views themselves as not racist, and treats others equally, but still voted for Trump is, at the very least telling us that they think it's alright to be vicariously racist, if not overtly racist.
I respect a very few amount if people that I know who cast a Trump vote, but I live in Utah where we had an option for a third party conservative that was not an idiot. Trump would have gotten the majority if those votes had mcmullin not run, and more people I respect would have voted for Trump. I get the argument that they are not racist, but to argue that they are not racist by ommission is wrong. Even if it's extremely mild, they are not devoid of racism. Otherwise, we wouldn't be taking about president elect tRump