> I get the impression that people who are only used to seeing front end code as JSX don't have any idea how to proceed when its just JavaScript.

I knew anything I said your answer would be something in this line. You think what you wrote is amazing but it is just verbose bad abstraction. If you think the difference between 4k lines of code and separated logical modules is just a matter of fewer lines (which might not even be the case), there is nothing I can say to you but it is funny that you use this terrible code as an example. You literally wrote all DOM manipulation repetitively and inefficiently by hand. But it makes you proud! Congratulations, I guess.

I couldn't care less about JSX tho you made too many assumptions about someone that thinks the example code sucks.

It is not abstracted at all. It isn't awesome. It is organized according to the TypeScript definitions in the project. The rest of your opinion is challenging to infer because there isn't anything of substance. Really your opinion can be reduced to: I don't like it. That's fine, but it isn't helpful. Its also why I am forced to make assumptions.

It isn't about being proud, or awesome, or some silly vanity. Its about being fast, almost 100ms fast, and organized well enough for quick maintenance.