the genetic winners, the lottery winners
For those who've never met an honest, consistent liberal, this is what they all think.
Anything you have (cars, house, family, television, etc..), everything you are (intelligent, hardworking, determined, outgoing, good-looking, etc...) and everything you do (music, athletics, math, science, etc...) is all a result of luck. If you have, are, or do anything better than anyone else, you are "lucky."
These people don't believe in human choice; they believe in determinism. Thus, if you "worked hard" to get where you are, you were just lucky that you were born a "hard worker." If you came up with an idea no one else ever thought of, you were just lucky you have the genetics to give you a mind like that.
As a result, you don't deserve what you have. No one deserves to have anything more than anyone else because you only have it because you are "lucky." (And I mean ANYONE else.)
To these people, Harrison Bergeron isn't a frightening warning. It's utopia.