I'm actually eating an avocado right now.

Lots of plants and animals were named by lonely white 19th century scientists.
Venus flytrap yeah, they had mother issues
Woolly mammoth they were a special kind of lonely: they named it that because they thought the end its tusk looked like a nipple

If we were to go even more Freudian, we could assume that the Caucasian obsession with avocados comes both from a desire to return to "simpler, more wholesome times" everyone assumes there used to be, as well as the continued sexual repression that has persisted since the time period they want to return to.

Or it is some health related bull$4!+. Who knows. I was talking out of my ass anyway.