f I were Boeing I'd tell Delta to get lost they have done alright without being a major Delta supplier for many years now other than the 737. Perhaps the new tariffs are making the pathway to Airbus a bit more difficult than it has been in the past. The ball is not in Boeing's court it's in Delta's court Boeing will sell more than enough of the NMA aircraft in the rest of the world not to even bat an eye at Ed's rather childish remarks.
Good thing for both that you don't work for them.
Boeing telling a longtime customer airline to "get lost" is the reason Airbus is a player today at all. More than any other early order, it was the UA A320 order that put Airbus on the worldwide map. Boeing was so arrogant that it thought it could offer an inferior deal on an inferior airplane (the 737-400) and still make a paycheck. Boeing engineering and sales have both had their ups and downs since then, but they certainly haven't been dumb enough to make that mistake again.
And if Delta actually acted toward Boeing in the way you are accusing them of doing, it would be financial suicide. In an era when there is a duopoly of large-airliner OEMs (and, let's be honest, there is no chance of that changing in any segment above the 738/A320 in the foreseeable future), airlines have
to have a credible threat on the table with each OEM to order from the other. No airline is going to align itself with one OEM so deeply that the OEM can take its foot off the gas on pricing.
Fortunately, in the real world we have something very different from the picture you're portraying. Delta is an operator of over 500 Boeing aircraft, constituting the majority of the Delta fleet, and a customer of critical importance to any OEM. Delta's CEO is telling us in the plainest possible language that he really wants a proposed new Boeing aircraft if the price is right. Boeing will do their best to get there, and Delta will follow through if they do. The last time Delta management acted like this about an aircraft, that aircraft was the A330neo and the result was 35 orders.