As a member of the public, you are all contributors to Boeing's impending downfall if you have in any way contributed to the production processes of Boeing over the last 10+ years. The blame does not just sit on the shoulders of a few upper managers when we think about the risk that we are now in when we sit on one of the trash heaps that you put together.
No, you can't continually blame management over and over. You enjoyed your union jobs and benefits and had every opportunity to leak news to the press, or the FAA, your local members for congress, or many other avenues. Now that the wheels are (pretty much literally) falling off, you're all pointing the fingers at upper management as though the masses could not influence change in some way.
It was YOUR complacency, repeated habits, and acceptance of deviations and mediocrity. Stop pointing the finger. You too have blood on your hands.