There are many GUI building libraries in Go. Sure, you wouldn't be writing JSX (and I agree it's an interesting idea), but it doesn't mean it's more any work to get things rendered in a terminal with other approaches, especially with these AI assistants to help you finish the boring parts.
If the UI is complicated at all, React is a well-established way to do that easily. The one-off tools will be harder, and even the AI won't know them as well as it knows React.
