In my opinion the major factor that is being overlooked here is that Trump demonstrates what he brings different to the political quagmire in Washington.

If you made a contract for the contruction of your new home for $200,000 and some where along the line you were advised it was going to be $400,000, what would be your reaction?
Cancel or raise hell to get back to the contract right?

That is what Trump is doing differently. He is demonstrating what all good managers do when they inherit a new business.
Cut and kill those expenditures that make no reasonable sense what so ever. Hence cancel the Boeing order.

The business as usual politician, demonstrated here to date, would just let it go merrily along. It is not their money. They are not going to upset the voter base that work for Boeing. Wrong is wrong.

And yes, this is a demonstartion of the good reason why many are afraid of what Trump IS GOING TO DO, that upends the status quo and disrupts those who have been milking the USA for years.

Whether the rank and file or the uniformed like it or not this is a positive example of what can be expected from a non establishment, business/politics as usual
president.