What is the Kamala Harris coconut tree meme & why are people sharing it?

The coconut tree meme originated from US Vice President Kamala Harris' 2023 speech. "[My mother] would say...'I don't know what's wrong with young people. You think you just fell out of a coconut tree?'" Harris said with a hearty laugh. It soon became a meme and was re-shared in last 24 hours after Joe Biden supported her for President's race.