But now if Trump is making the upper-class richer,
Trump cannot make upper class people richer; that's a moronic claim that cannot be backed up by facts.

and one would imagine these "Deep State" people are part of the upper-class, then why would they hate Trump?
They are part of the bureaucratic class: The Deep State is believed to be a clandestine network entrenched inside the government, bureaucracy, intelligence agencies, and other governmental entities. The Deep State supposedly controls state policy behind the scenes, while the democratically-elected process and elected officials are merely figureheads.