He started his campaign by demonizing and scapegoating immigrants. He continued by demonizing members of a minority religion and proposed policies actively harmful to them. He actively encouraged, promising to pay the legal fees for, supporters to attack protestors, who were at the time standing silently holding banners criticizing Trump's previous comments. He has continued along these lines, and before the election itself even started making threats to prosecute his political opponent over charges long since investigated and dismissed by not only law enforcement, but by hostile congressional committees. He even - for reasons that remain peculiar - managed to insert barely concealed anti-Semitic language in his last round of election ads.
What about him makes you say he's the "closest thing to a moderate"? Because I'm not seeing it. He's the closest thing to Mussolini we've seen win the Presidency (or even get close to winning the Presidency.) Is he as bad as Mussolini? Mussolini started in a country that had descended into lawless anarchy, and could get away with a lot more than Trump can. So it's hard to really make a direct comparison, but we know what drives both.
I appreciate many don't like Clinton. I don't either. Depending on how many conspiracy theories you believe about her, she's either an honest, female, version of Richard Nixon, or, well, just as bad as Richard Nixon. But even Nixon vs Mussolini is no contest.
What's frightening is that while all of this was acknowledged before the election, now he's one many seem to feel the need to fall in line and pretend it's not happening. Oh no, it must instead be the media's fault, the "lying press"... now where have I heard that phrase before?