Software trends develop for many reasons, not all of them logical. The time for Lisp being used as a general programming language may have passed, or the right set of circumstances have not yet come together. It is very difficult to predict programming language winners. What seems obvious in retrospect was not clear at all at the moment.
I would like Lisp/Scheme/Racket to blow people away with awesome software. Questions raised about price are quite valid. Forcing people to use Emacs is not a path to greater Lisp adoption. There are those of us who have found career niches using Lisp, but there needs to a better effort both in education and tools.
Resurrecting old Lisp environments and dragging them into the present day probably isn't the best solution. Perhaps the best solution is a VSCode environment coupled with real-world examples. More Todo lists and CRUD editors as examples haven't done a lot of good in driving adoption.
Your questions might make some uncomfortable, but I like that you are asking them!
Your question motivates and challenges me. Some of the emerging and successful no-code platforms could have been written using Lisp. Maybe that is one possibility...