I think the BEA have got this one right - airlines (and other companies) have to give people suffering from mental health issues some sort of support - take the guy off flying but continue to employ them AND allow them to return to flying once they are well again
I've known a few people with mental health problems and TBH for most of them it's been a temporary issue that they have got through
If we demonise it and throw them in thw street who the hell is going to go and seek help or turn themselves in??