With Musk, Biden is here just using an old, proven, hunter-gatherers' method to get booming young hunters in line 😎:
https://news.yahoo.com/elon-musk-said-voted-biden-110900121.html
“Yes, when a young man kills much meat he comes to think of himself as a chief or a big man, and he thinks of the rest of us as his servants or inferiors,” one Kalahari hunter told the anthropologist Richard B Lee in 1968. “We can’t accept this. We refuse one who boasts, for someday his pride will make him kill somebody. So we always speak of his meat as worthless."
>In hierarchical societies, mockery is often associated with bullies whose power exceeds their moral authority. But it is also a tool of the weak, a means to pillory those in power and hold them to account. In the Ju/’hoan case this is best reflected in the traditional practice of ***“insulting the hunter’s meat.”***
Suzman, James. Work (p. 162). Penguin Publishing Group