It's not hatred. It's fear.
People are terrified of that which they do not understand, particularly when they are told by those they trust that they have good reason to be.
It's easy to make a person fearful. It's even easier if they are not well traveled, or well educated, and have had little exposure to reality outside their bubble.
Black men will rob you or rape you (or both). Immigrants will take your jobs and your women. Obama will take your guns. Everyone is out to get you, to take what is yours and to leave you with nothing. Just look around - see how everything is going to shit? Of course it is. People are taking YOUR STUFF. Taxes are THEFT. Atheists are trying to KILL BABIES. Muslims want to blow you to smithereens. EVERYONE who isn't like you is out to get you. But it's OK, because Trump will protect you from all of that. He will build a wall; He will drain the swamp, and fill Washington with people who CARE about these terrifying things that are lurking out there waiting to get YOU.
The fact that your fears are largely imaginary, and that therefore anyone who claims to be able to protect you from them is either a lunatic, a liar, or both, is impossible to grasp, when every part of your life experience points to things you should be terrified by.
You NEED those guns, for your own defence - despite the fact that people in the rest of the developed world don't have guns for self defence, and don't get robbed or raped any more than your people do.
You NEED that religion; Satan is trying to get your immortal soul - despite the fact that there's no evidence that you even own such a thing.
You NEED that border wall; Those illegals are bad hombres who don't send their best - despite the fact that illegal immigrants in the US contribute far more to the nation than they take out of it.
You NEED to be terrified; Everything different or remote is seriously scary shit, and it is coming to get YOU.
The Trump base (And the One Nation voters in Australia, and the Brexiteers in the UK) are all dangerously paranoid lunatics. They are the salt of the Earth - Hard, square, and bad for your health. But the problem is not that they hate (most don't). It is that they FEAR.
A strange dog won't bite you because it hates you - It can't hate you because it doesn't know you. It bites because it fears you - and wants to get its retaliation in first. That doesn't make it any less dangerous to you, but it does (perhaps) give you the start of a strategy for dealing with the danger. Fox News and AM radio are like the kids who have been throwing fire-crackers at the stray dog, making it terrified and jumpy. They make sure that it is constantly reminded that anything unfamiliar is a threat. The first step to opening any kind of non-hostile relationship is to remove those constant psychological attacks. Until that happens, there's no possible solution that doesn't end with one or both parties getting hurt.
But there's nothing so certain to grab people's attention than informing them of a threat. And as long as getting people's attention en-masse is as hugely lucrative as it is currently for organizations like Fox News, they will keep on inventing and exaggerating threats for profit. Today's US Citizens are perhaps the safest humans who have ever lived. But they are scared of terrorists, or immigrants, or atheists, or communism, or fluoride, or taxation, or miscegenation, or satan, or D&D, or Rock n Roll, or any of dozens of things that are not a real threat to them at all. And most of all, they are scared of smart people, of book-learning (other than from the Bible, of course), and of education. Because if you want to keep people scared of things that don't exist, it's vital to condition them to avoid asking searching questions.