All of the implicit claims in this tweet are pretty much true. Air Force One is more than one plane, and the project really is projected to cost something like $4 billion. It's also probably true that Trump tweeted this because the CEO of Boeing said something mean about him -- as far as I can tell, it was something in support of the TPP.
So cue all sorts of approach-of-fascism, this-is-the-end things from the center left. Trump was "tearing up a contract". (Well, actually, no. The President saying that a contract should be cancelled does not cancel the contract.) He tanked Boeing's stock and should be sued for that. (The stock was back to its previous value by the end of the day.) He was deluding his brainless followers, who wouldn't even check the blatant lies in his tweet. (Actually, of course, the people who were saying that the tweet was crazy hadn't checked for themselves at all.) He was calling the whole capitalist system into question by thuggishly pressuring a company using the leverage of government contracts.
Boeing is the second largest defense contractor in the world. It's the military-industrial complex. I was unaware that being on the left meant defending the sanctity of contract for big military business, or defending stock prices, or that we should leap to defend the TPP because Trump is against it. Pity poor Boeing's lobbyists who are being silenced as they try to speak truth to power! Of course Trump and Boeing patched this up in short order.
Trump's next target (there's probably going to be one every couple of days) was Chuck Jones, a Steelworkers union leader, and that was bad for Chuck Jones who got a lot of threatening phone calls from Trump supporters, but at least this Trump target was a) a person, not a giant corporation, b) telling the truth, not speaking out for the TPP, c) one of a group that is a traditional first target of the right and that people really should support.
That lasted a little while. Then Trump attacked the most important target ever, apparently: the CIA. And the reaction was "how dare he attack the CIA". Pity the poor deep state! They only want to speak the truth, which they have tortured out of a succession of innocent black site prisoners. They could not possibly be lying about nebulous evidence of Russian involvement in releasing DNC Emails. And how dare a foreign country interfere in some other country's election. The CIA's entire history shows that they are the guardians who stand strongly against that.
I know that I've written this a lot, but there is no anti-Trump alliance. The center left or whatever you want to call it does not share the left's values: they are motivated strictly by partisanship, and will instantly throw the left overboard as soon as they return to power or really whenever it's convenient, such as when they think they'll get a better deal out of Trump. They won't support us: they won't defend us: they don't even really want anything from us or have any use for us. They won't even defend their own voters or their own base. That's the first and most salient fact about the Trump era.