We don't speak the same languages

the reason humans need tribes is because otherwise they encounter others on their side in the wild and they attack each other

this was true 10,000 years ago and it is true today. You can see this happening on twitter

https://x.com/DefenderOfBasic/status/1850913920409550974

Here's a real life example of translating from one culture to another, something that sounds completely unintelligible until you learn to decode it:

https://x.com/AskYatharth/status/1850069618821562795

This is essentially the basic premise of Anatomy of an Internet Argument, showing how to do this.