Just a question, do you have 20 years of flying experience or do you mean "life" experience?
You'll have a hard time proving you've been discriminated against, unfortunately.
If you have no flying experience, then you'll have to set your sights a bit "lower" and get an instructor rating or look for a turboprop or even piston job further afield.
I was (probably) discriminated against as I had no jet time when I moved to the UK when I was 35. I did have 4500 hours in pistons and turboprops.
Eventually found a jet job.