why do people hate Trump in the U.S.? — DiegoT
Not everyone does hate Trump.
Those who are not fond of, dislike, loathe, or hate Donald Trump are responding to several features:
First, he has zero record in public service. He is an entrepreneur.
Second, as an entrepreneur (real estate) he has not been nearly as successful as he paints himself to be. Some of his projects appear to be manipulative bankruptcies. Many of his hotels are not actually his -- the Trump name is licensed.
Third, Much of Trump's wealth was inherited. This is not at all unusual -- a lot of rich people inherited their wealth. But Trump has presented his wealth as the work of his own genius.
Four, Trump's familiarity to the public is based on his abrasive celebrity shows.
Much of his career carries with it more than a little odor of dishonesty and flim flam.
Trump has made little effort to perform the role that politicians traditionally at least attempt: the statesman with gravitas. Trump eschewed any sign off gravitas (substance and dignity) from the getgo. While not being uneducated himself (presumably he learned something in college) he favors the impression of being anti-intellectual. Americans do not expect their presidents to be learned scholars, but they want them to respect learned scholars (because the president needs to get good information on which to make decisions). Trump seems to be in very short supply of good information about anything.
Trump is cynical; this is standard in politics, but he makes little effort to conceal cynicism the way most politicians do. His election strategy was to play to the lowest common denominator in crucial states. We don't like open cynicism.
Trump has little respect for the kind of role that most Americans expect the President to fulfill.
Trump didn't invent the right wing, white supremacists, racism, anxiety about poorly controlled immigration from Mexico and Central America, and so on but he has done nothing to allay mainstream fears about the right wing, photo-facists, crypto-fascists, authoritarians, and so on.
Barack Obama, George Bush II, William Clinton, George Bush I, Ronald Reagan, Jimmy Carter, Richard Nixon, Lyndon Johnson, J. F. Kennedy, Dwight Eisenhower, Harry Truman, F. D. Roosevelt, Herbert Hoover, Calvin Coolidge, Warren Harding, and Woodrow Wilson -- have all been problematic in various ways. Presidents, of course, are not perfect and it is a very difficult job. But most Presidents have more or less played the role that was expected of them. Most of them have been reasonably competent. Perhaps Trump is most like Warren Harding. Harding died in office, so maybe Trump will be kind enough to do the same. His Vice President can follow suite.
Trump has more forthrightly revealed what ruling class politics is really about -- protecting the ruling class and fucking over everyone else. He has pulled the curtain aside (think of the Wizard in Oz 'reveal' scene).
In summary, Donald Trump is an arrogant asshole.