If you don't like it, what exactly should be done with the program? Should it be cancelled? Do you still think it should be cancelled if that means maybe agreeing with Trump?
This kind of argument is what's wrong with people voting the party line instead of voting with reason. Who the hell cares if Trump is right? Do what's right because you think it's right, not because of some petty political squabble.
I do not pretend to understand how complicated such an expensive program is and what all the effects of cancelling it would be, but based on what little I know it seems like it would be a good idea to cancel the program and put the funds into something more productive.
Like I said in a cousin comment, I'd be concerned about what the future would be for aircraft if we did cancel this program. I'd hope to see a plan for what we're going to do for the aircraft we need to buy and replace over the next 30 years before they moved forward with cancelling it.
TL;DR: The scope of this project (intentionally) means there are customers in 10s of countries, with most of them also contributing portions of the plans and so invested in the sales of the others. Just in the US alone contractors account for more people than the Coal industry we're hearing so much about right now.
I have not got nearly enough information to say if it's a good or bad plane. But I find it extremely interesting to think that to a large degree, it doesn't matter.
While the US is already committed to the F-35, discussion of the plane's shortcomings is important for NATO and other allies who haven't yet signed up to buy the plane (e.g. Canada). Maybe the plane will mature into an effective platform, or maybe it will never be anything more than an expensive turkey. Right now it seems like the right thing to do is hold off making a purchase.
For the US, I'd bet the primary utility of this plane is the health of the defense complex because it is probably the last traditional major fighter program. They'll switch to fleats of networked AI "manned" drones and that will be the real prize. (Prize because it means force projection without political risk.) But one require a healthy defence industry to make these significant investments. And one requires significant expertise in a workforce in place. But the technology probably isn't there for another ten or twenty years or so for complex/flexible missions.
This is clearly the way that things are going. Within our lifetimes the Western way of making war will be a fleet of drones endlessly circling above "enemy" territory, firing a Hellfire missile at anyone a Facebook-trained face recognition algorithm deems to be a threat.
By "enemy" I mean "the entire rest of the world" of course.