What does 'the man that everyone loved to hate' mean here?

[Maggie]

Hi,guys

[Mister Micawber]

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JR was a despicable character who cheated the other characters for the sake of money. Yet the actor did a great job of portraying him, and viewers enjoyed watching disliking JR's personality and shenanigans.

'But,at the end of the day, the world those stars inhabited was a fantasy world'-- here, the author reminds us that although the story line of Dallas/Dynasty was absorbing to the viewers, who became very involved in following each show of the series, it was indeed only fiction, not a real story. 'At the end of the day' means 'essentially, finally, after all is said and done'.
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_________________
Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mr. Micawber

[Diverhank]

JR was the epitome of "a man everybody loved to hate"...a more recent example, not a very good one - only one I can think of, is Simon Cowell of American Idol. The guy acts and talks like a jerk and many people hate his guts but then ratings for the show has been phenomenal because of him.