Major parts of Windows, Android, and Linux were being written in Rust before it turned 10. Major parts of AWS were being written in Rust before it turned 4. Major parts of Dropbox were being written in Rust before it turned 1. So you agree by your own criteria that Rust is a major language?
> While it kept growing in popularity later, by 1983-5 C was already one of the top programming langugages in the world.
In the mid-80s, C still had plenty of major and healthy competitors, as pjmlp will imminently arrive to remind you. By the criteria of mid-80s C, Rust is already one of the top programming languages in the world.
> AJAX (popularised by Gmail) pretty much revolutionised the web in 2004. When jQuery came out in 2006, JS was all over the place.
No, despite the existence and availability of freestanding interpreters (e.g. Rhino), Javascript was an also-ran everywhere except the web; which is to say, nobody was choosing to use Javascript except the people forced at gunpoint to use it. There are infinitely more people choosing to use Rust at the age of 11 than were choosing to use Javascript at the age of 11, which means that, once again, by your criteria, you must consider Rust a major language. You can just admit it instead of being a tsundere.