To find any semblance of "real potential" in another industry, you need to commit to it for a good number of years, put a lot of effort into learning (because non-technical skills are essential but without the technical ones you're no professional in anything) and gain experience, starting from the bottom of the ladder. I.e. reinvent yourself completely, which has to start with accepting that aviation is now history for you and you're not coming back into it ever again.
In the end of the day, that's not what the majority of redundant pilots want. At least two thirds of them intend on coming back into flying as soon as given the chance. Hence the "survival" jobs driving delivery vans etc. That's all their current qualification allows for under the circumstances - and getting another one now is only worthwhile if you intend on sticking with it long-term. Spending 2-3 years in misery retraining onto something else, only to bin it and go back into flying right after, hardly makes sense long-term.