I think these PC arguments are silly. You can say fuck or shit in your stump speech all you like or you can talk like an alien pretending to be human (like many politicians), but at the end of the day, PC or not, the only thing that really matters is if you're actually correct. I don't think he is competent enough to run this country - his business MO is marketing scams and declaring bankruptcy after all. You seem to like your free markets so I might recommend Gary Johnson.
Sure, Donald Trump may not be as racist as he is portrayed since the media has a clear Clinton bias and is definitely playing him up as the villain. This has ironically worked in his favor, in terms of gaining coverage. In fact I would condemn the media for being complicit in the "racism" of Donald Trump because they hardly talk about anything other than his controversial statements. His appeal in terms of him not being bought by anyone, and saying the occasional sensible thing about foreign policy or trade deals goes completely ignored. This only makes his base angrier, and arguably rightly so. But it's those real issues we face that people in comfortable places of influence don't want us thinking about.
But he is pandering to a base that enjoys it when he makes sweeping (often negative) generalizations about groups of people he knows little or cares little about. That's dangerous for society, even if he doesn't believe everything he says. The real problem is not Trump, its the ideology of a large segment of his supporters, in ideology that's in every society and is minimally harmful unless its given a loud voice. Prejudice in the individual level works the same way, we all have some but its only when that part of us wields to much influence that it's a problem. Trump may not be American Hitler but he may lay the ground for one.
You don't want to be PC, fine. But regardless, people need to be held responsible for what comes out of their mouth. What you say has consequences in proportion to how many people hear it.