I agree with everything you said up to the part about fresh and deno, where it looks like you’re falling in the same trap of those wanting to use react. You don’t even notice it but this is the problem. Always thinking the next shiny tool will solve the problems.
Rails, Lararavel and similar frameworks are great for crud apps. No need for fresh or demo or svelte or next.js for that.
I don't think that Fresh or Deno will solve any problems that aren't already solved. In fact, there are a lot of very frustrating bits about Fresh that worked a lot nicer in i.e. Rails. I would not use Fresh in production right now; if I were making a generic CRUD app I would probably use something a lot easier and with a bigger community around it.
Rails, Lararavel and similar frameworks are great for crud apps. No need for fresh or demo or svelte or next.js for that.