Nor even was it when Skype and IRC were made (by Europeans). SMS (also European) was slightly harder to invent because that's not on the internet.
This is a response to a hypothetical where every single existing (or possibly just US) chat provider leaves the EU, and I'm saying the claim that this will cause any degree of pain whatsoever to the EU population is ridiculous because the replacements are far too trivial to not immediately replace the US apps.
Sometimes I think it would be good for Meta, X, Google etc. to lose market share in the EU and UK. It's ridiculous that we're beholden to one country for so much software, and they're all being actively enshitified anyway.