The post was referring to US citizens in general, you said they admired and lionized Musk but it's only a small minority of white supremacist fascists that are making these decisions, and they don't even like Musk really but just use him for his money. Most average citizens don't pay attention to what is happening and when they do they generally oppose the nazis. Even my conservative Christian grandma has been calling Trump and his supporters nazis since 2016.

Your wait is over: when you make a sweeping generalization about “them,” recognizing none of the diversity among “them” it is only logical to conclude that you mean them all. You can say more to clarify if you want but don’t act all smug about how you nEVeR SaId aLl!

Oh joy, I get to explain reading comprehension and courtesy to a Brit, this should be fun.

Let's dissect your comment:

Not going to happen. Have you seen how they've admired and lionised Musk?

Now English is a language full of beautiful flaws and nuance, so when someone uses "they", it generally implies the totality of the group the writer is referring to. Sometimes this can be implying only some of a demographic, but, more often than not, implies the whole. This is where we dig deeper for what you may remember as "context clues". These are things we can read to see what the author's intentions were.

If a man that literally saluted Hitler at the US president's inauguration is casually handed billions then something is very wrong with that country.

This, while being a very true statement on it's own, must be coupled with the previous statement. This sentence concludes with "something is very wrong with that country." So, using that context clue, we can conclude that the first sentence means "All Americans" when you wrote "they", not just "some Americans".

But there is a third clue to your intention as well! It's what you just wrote in the previous comment.

Explain how you took what I said to mean "everyone in America". Go on. I'll wait 😜.

That cheeky remark cements your true intention. If someone did manage to write what you wrote without painting with a wide brush, they would have apologized or at the very least, explained themselves. Putting that onto the reader while trying to flick their nose shows your underlying distain, while hidden shame at being called out. Someone acting properly would not act in such a way.

It must be liberating to not be burdened with any of the positive stereotypes of politeness and propriety of your country and culture, so thank you for letting me indulge at being better than you at them.