Hate, Envy, and Shifting Responsibility are the tools of the left. They appeal to the baser nature of humanity.
Trump beat the left. So, they convince people that Trump's a hateful person, therefore you should hate him. They do this by labeling him as sexist, misogynist, and so forth.
Meanwhile, the left has gotten sub-groups of Americans to hate and envy each other. The ghetto/projects denizens are told that they deserve the rich man's life. The generations of urban-bound, poverty-stricken denizens continue on the cycle of insanity of envying the rich.
Meanwhile, they do nothing to change their behavior. There are simple steps to improving your social circumstances, but if you believe the problem is attributable to someone else, the issue rests on them, not you. The left continues to push this 'victim narrative' instead of a message of empowerment.
Trump embodies the antithesis of all 3. Trump has supported minority movements throughout history. Trump doesn't care what the colour of a person's skin is so long as their money is green when it comes to business. Trump is rich and took steps to make more money. Trump knows how to play the game, therefore, Trump is a threat.
And mostly, Trump does not support the leftists agendas (globalization, open borders, etc). This makes the left so hostile to Trump. Such to the point where hating Trump is the only thing they can really do. Since leftists are masters of hate, they have their base hating Trump.