That's not a counterpoint but a confirmation of the first part of the original argument. You just listed two examples of such apps that fail to influence America despite being huge in other countries.

To make a counterpoint you need to find something popular in USA with no uptake outside of it or something that influenced USA but came from outside.

Honestly, the iPhone is a perfect "counterpoint" if you're looking for one. Dominant in the US, but relatively marginal worldwide.

It's fairly less popular (it might have to do with high price) but nowhere near 'marginal'[0]: http://static5.businessinsider.com/image/58d04a02112f701f008...

It's also supposedly (I can't remember where I heard that, some tech channel on YT) the only non-Chinese brand that's popular at all in China.

[0] Admittedly I have no idea for context of the picture and had to get it from google pictures since I couldn't visit business insider, I keep getting redirected to a Polish version of business insider that has NO TEXT AT ALL (?!).

Also, what do people find so wrong with me pointing out that "here's 2 apps popular out of US but not in it" strengthens the "USA influences the world but not vice versa"?

Look at the world-wide smartphone revenue share and tell me if you think iPhone is "marginal".

Yup, marginal (below 14%):

https://www.statista.com/statistics/266136/global-market-sha...

Key word: revenue

I can't find revenue numbers anywhere. Do you have a source?