[murukesh_s]

>There are a million visual frontend builders out there, and they are all terrible, because you can never get them to do what you want.

I disagree. I had worked with Visual Basic and it had a great balance of ease of use and flexibility. If you are not obsessed with the feeling that you need to see the underlying code of the UI, you can have a great visual builder. Of course you need to code the event handlers, that's pretty much should be the coding required. I am talking about something like webflow + code for event handling.

>require a huge amount of hacking around which results in code that is worse than what it would have been otherwise.

that is because you haven't seen a great implementation yet. and as another commenter mentioned below, mobile UI builders are better because there is a uniformity in mobile design, while desktop (web) design lacks uniformity. It's possible.