"No u" is a fun argument because it's usually what people resort to when they've realized they're wrong but don't want to admit it.

Give me one example, ever, where the phrase "to buy" in comman usage means to purchase the rights (as in copyright etc) to something. If I say I'm buying a Dodge Charger, I'm not contacting the lawyers of Dodge to try to buy the intellectual property associated with the Charger brand. I'm buying a car. I could give infinity examples here, and it's unnecessary because it's so damn obvious.

If I purchase a Big Mac, it is mine to do with as I please, forever (or for as long as it lasts). I can put a funny hat on it. I can throw it at a tree. I can feed it to my pig. I can attach it to a drone and launch it into the ocean. It is my Big Mac. I have not purchased the rights to the term "Big Mac", or the recipe, or the patent on the secret sauce. I have purchased one physical Big Mac.

Duh.

Just take the L dude, either English is your second language or you had a massive brain fart and you interpreted someone else's words in a ridiculous fashion.