If...I understand... and I'm not sure i do... it's a reference to a retort Harris had a while back. (maybe this speech)

My mother used to — she would give us a hard time sometimes, and she would say to us, “I don’t know what’s wrong with you young people. You think you just fell out of a coconut tree?” (Laughs.)

You exist in the context of all in which you live and what came before you.

part of a swearing in ceremony for something. in any case, IIRC her father is Jamaican, so there's some of that too.

Sounds like you need some ... context

Understanding a statement like that requires a minimum of mental acuity. No wonder the Republicans freaked out.

Yall really be acting like you just fell right out of a coconut tree

Well, A told B and B told C I’ll meet you at the top of the coconut tree.

Eastern racists trying to do an agitprop.

Disregard the scum.

I guess she told a story about a coconut tree. I was assuming it was because memers were encouraging Joe Biden to retire and have a relaxing drink out of a coconut under a tree in Hawaii or whatever.

I think you need some context: Brother bought a coconut, he bought it for a dime. His sister had another one and paid it for a lime.