I concur about Javascript, but I don't think it's true for Typescript. Typescript is a remarkably powerful typing language.

It's still got some baggage left over from Javascript, to be sure. But the typing is genuinely very good, and more than sufficient for "basic comprehensive abstractions".

JSX is just Javascript with syntactic sugar for HTML. It's not really intended as a general-purpose language. TSX is a fine language, but I wouldn't use it for "basic comprehensive abstractions".

Depends...

Like if you want to make a basic dashboard, things like alpine/htmx should make more sense to you and you should definitely go for it

But I have found that if you are writing ever so slightly complex code, you might be then forced to write js code (not sure about blazor but even that suffers a little in benchmarks but the fact that somebody can fully stop to never touch js sounds a bit intriguing even though it maybe slow but sure)

So when you are forced to use js to write complex software, frameworks especially frameworks like svelte / maybe solid could definitely help you out

Honestly, sveltekit is just html css js and some opinionated stuff and I kinda feel like that this might be the sane thing but maybe that's because I was there when svelte 3 was launched and I was 15 so svelte was something sooo interesting to me (still is! but golang is also love, man I know that svelte and go could be integrated and maybe I would), I never really went around learning pure js dom manipulation / ts / jsx if I am being honest so I am not that much of an expert

This is quite a large set of things to hand wave away with no additional justification. Makes it sound more like personal bias than meaningful insight