Trump lives in part of it, and it’s also a “membership club” (think country club kinda thing for the super rich). The neighbors hate him because he accepts as members people the older clubs had been keeping on the fringes for years. The neighbors also hauled him into court for putting up a giant American flag. He’s not real popular with the Old Guard out there.
In other words Trump’s club was the first in old Palm Beach to admit Blacks and Jews