I think Trump is hated by the left because his ideology, his words and actions, are the exact opposite of the left's ideology. He is not a "globalist," but loves America, our homeland; he knows that we can't continue being the world's number-one giver if we are not safe and successful ourselves. He knows that capitalism, not communism, will feed the poor; capitalism makes everyone richer, while communism makes everyone equally poor. He knows that free enterprise and less government regulation will provide jobs and boost our economy, not socialist handouts and overregulation.
SPOT ON.
He knows that less unemployment and getting out of debt will save our nation much more than wasting time and money on things like the scientifically unproven climate change hoax and its hidden goal of controlling the masses. He believes in individual freedom and responsibility, not government control. He's not a secularist (new word for atheist, according to Julia Sweeney's TED talk), but a defender of religious liberty, including Christianity. He is protective of Americans and not protective of our enemies, some of whom sneak into our midst through unenforced immigration law.
He thinks all lives matter, not just black lives; he respects the police, firefighters, and military instead of fanning the Saul Alinsky Rules for Radicals flames of violent civil unrest and class and racial warfare. He is not a saint, and he doesn't pretend to be. He believes in free speech, not political correctness. The left is confused; leftists don't know how to respond to a politician who speaks from the heart, not from talking points. The left hates Trump because the Tea Party loves him.
This is someone who GETS it.