One could make the same argument for anything really, but it has nothing to do with why this particular drug that’s completely ineffective is being sold.

And just because you’ve never experienced an extreme case of rhinorrhea doesn’t mean it doesn’t exist. It sounds like you’re more interested in painting Americans as whiny babies who can’t handle a little cold instead of discussing the actual topic.

Also, paracetamol is toxic to your liver so it should be avoided unless really needed.

You don't "need" any medication for most colds. But people want (and deserve access to) cold medication that treats the symptoms that they find unpleasant. Also, some people are prone to sinus infections - taking pseudoephedrine when you start getting congested (before developing a sinus infection) is crucial to preventing infection and avoiding damage to your nasal passages.

Well, Americans would call it acetaminophen or just Tylenol and I'd be careful with "pills" as dosage isn't consistent among the pills and that could be a lot. In the US, many pseudoephedrine pills come with 500mg acetaminophen. Typically they're marketed as "cold & sinus" (Tylenol Cold & Sinus is the brand I know). I've heard people say that the addition of acetaminophen is dual-purpose; one is that it generally helps with symptoms and the other is that it makes it harder for meth producers to isolate the pseudoephedrine without adding a lethal dose of acetaminophen. This is all mostly hearsay.

That might work for a cold (important, a runny nose is often beneficial for cleaning out the cold).

But allergies (and sometimes colds) often cause sinus infections, which will get worse if untreated. For me, pseudoephedrine can quickly reduce a sinus headache during allergy season (aligned with rainy season for fun humidity changes), and can be used before resorting to antibiotics if a sinus infection presents.

The paracetamol don't do anything for cold. You just have to wait and get better. You can also clean your nose regularly with a saline solution when it is too congested.