You are failing logic. For one, it's impossible for an elected president to speak and act for every single person, and pretty much no president nowadays even says as much beyond shit like "The american people extend our sympathies towards X". The president has to constantly battle political opposition from within their own country. People actively try to prevent the president from acting in certain ways that would not speak for them.
Ok. So, any sentence including: "the US" would be illogical? Because you and Ty are telling me it doesn't exist in any form? There's only people, living mostly and roughly on the Northern part of the Americas?
And, of course, they're all unique, and no two are alike.
It's like bookkeeping. Give me a moment to explain.
When you're born, there's only "everything". After a while, you make a division between "me" and "everything else". And then you learn to name things, like "hand", "belly" and "mouth", which are parts of "me", and "mom", "dad", "food" and "poo", which are part of "everything else". And it continues from there.
Learning is like dividing and naming things, and finding out how they interact and transform. And which ones are alike others.
If you are communicating with other people, you try and pick the division that is the most useful. Simply because you don't know and don't have the time to live to sum up all of the possible parts. In short: if you didn't do that, you couldn't communicate whatsoever, at all.
Bookkeeping is like that (as is mathematics and most everything else, of course): at the end, you get 0 (zero). That means, the books are balanced. While you might have divided the total in many thousand distinct parts. Which is what bookkeeping is all about. That they add up, means you got it right.
Which is a valuable lesson in real life: everything has an opposite. And you need to understand it before you can make a choice. Otherwise, it's just something someone told you, or something "everyone knows" (which mostly amounts to the same thing). Or something you do because the person(s) you respect say so. Or, in other words: powergames and politics (which also amount to the same thing, and even equal "truth" for most people, but in that case it's more like religion).