I never felt unsafe flying and I don't now.
But I did enjoy it much more prior to 9/11. Today, it's the closest thing to a cattle car experience without the actual bovine camaraderie.
Once I'm on the plane, I have little problem with cramped quarters and lack of amenities. But the experience of actually getting inside the plane is nearly unbearable.
I remember the glory days of traveling for business in the seventies. It was a matter of pride to leave the office less than an hour before flight time, walk into the airport ten minutes before and know that I could sprint to the gate, check in, and squeeze through the doors just as they were closing.
Flying was something to look forward to then and now it's drudgery. But, again, it's not the experience in the plane that queers the deal. It's the process of actually getting to the point of buckling up.
On the plus side, I pay three hundred dollars for a coach seat today just as I did then, forty years ago.