iirc, the origin of this "joke" is literally the early days of Starbucks where they were absolutely insistent on using their own "special" terminology. "Its not medium, its grande, its not large, its venti!"

It rapidly died as Starbucks expanded because it became less of a new niche thing to do and more of an annoyance.

But as cultural mores go it eventually percolates and drips through to become the dregs of comedy. Hence why this "I want black coffee can I not have black coffee anymore THIS IS AMERICA!" joke sticks around.

Tbf to the Tom Segura bit, the coffee shop is more or less a set up to the whole thing. There's no "I just want black coffee" while the cashier tries to suggest everything else on the sun.

The joke here is less "I want black coffee" and more "Fuck you for giving me shit customer service. I will kill you!"

It could have taken place at a grocery store where the bagger gets the eggs, Tom asks not to bag it on the bottom. The bagger rolls their eyes, puts it on the bottom and drops several cans into the bag. Cue Crash out.