And it's not even about English, but about a subset of ASCII on a QWERTY layout - symbols that are inputtable and explicitly marked on pretty much any keyboard.

And it's not even about English, but about a subset of ASCII on a QWERTY layout - symbols that are inputtable and explicitly marked on pretty much any keyboard. Whether most keywords in a programming language are in English or not is not even relevant. I mean if all keyboards had Greek symbols on them we would have an article about non-Greek-based programming languages. It's a good thing, I agree. There is no reason to worry either, as uncommon hard to input unicode symbols in the core language is such a huge usability failure, that those languages simply have no chance of gaining any significant mind share.