I won’t argue about Boeing’s quality having gone down in recent decades due to poor business and management practices. But if we are being honest, Boeing set the standard in aviation excellence in the aggregate of its history. As far as selling the shittiest, well that is a matter of opinion and compared to what other planes currently flying? Airbus? Which had its problems as well.
Boeing has always had a history in producing planes for the Military dating back to WWII such as the B-17 and B-29, B-52, Stratosphere, B1 lancer, P-51 Mustang H-4 Hercules etc. Commercial 747, DC-3 were some of the best planes ever produced. Like it or not Boeing is not going anywhere soon, and I am sure when you yourself when flying will probably find yourself on a Boeing someday, I am sure.
Your last statement that Boeing stays afloat because of US military purchases is not accurate. Boeing is still the most widely used plane commercially in the world today, only rivaled by Airbus. Its Boeing’s ability to offer a more diverse product line for various applications is the reason they remain profitable if you want to be honest, and actually do the math.
As far as this issue is concerned, this was an unfair trade practice imposed by the EU and the WTO ruling on this was something that they got right. The point is, if Airbus is so superior to Boeing as you so proudly beat your chest over then they should be able to compete in an open and free Market on a level playing field without corporate welfare subsidies from the EU.