1. Without American military funding maybe those things would be different, but the different versions would probably be much much better and maybe also have better names
2. No, not everyone can use English nor would they want to and it's not the language of the internet, it's the language of bullshit England and the bullshit anglosphere
3. Nostr is a great protocol if you want simplicity 
4. SSH is much better for what? I don't see a connection
5. I don't know or care who will use my relay except I hope I'll live long enough to do so myself
6. What's all about the user demographic? Obviously there's a hopeful chance smart people will show up first but you can't control that so who really cares?