For me, Secure General Purpose computation is one of the most important problems, but most people don't seem to even realize the scope/nature of the problem. You've got an entire industry focused on the wrong problems, and thus offering the wrong solutions.
The problem is one of a huge missing feature, the ability to spend a chunk of your compute resources (CPU time, files, etc) on a problem in a safe and secure manner.
Because of this, much effort is being put on "safe" languages, "safe" programming techniques, teaching users how to be "safe", and updating/patching everything, every day, on every device in the world.
At it isn't working. That approach can't work.
Thus, computing isn't something you can trust. You're left in a world of potential land mines everywhere, metaphorically. This then makes any play outside of the cleared zones (FAANG run sites) unsafe. So effectively, general purpose use of the internet is no-go to 99.9% of the public.
This gives the gatekeepers almost unchecked power to control discourse, and subvert Democracy.
It can be fixed, the solutions have been known since the 1970s. There's no general interest in this, nor even a perception that the problems can be solved. We've generally convinced ourselves that computers require the services/subscriptions from experts to "keep them safe"
Would you want a locksmith continuously updating your locks on your doors? Why put up with one on your computer?