Point one: I'm looking at it from the point of view of other countries. I readily concede the fact that US will never buy a French jet, even if it's far better suited for the role. It took immense amount of wrangling just to get Harrier in, even though it literally had no alternatives.
Your second point is moot. F-35's commonality is reported at around thirty percent today, and it's likely to go down rather than up as development continues. This is actually one of the biggest failures in the program, and was widely reported.
Your third point is extremely debatable. F-35's stealth is already been reported to be exceptionally lacking in all but frontal hemispheres, and in addition to that it has very little in terms of payload when it's stealthy. It needs to have external hardpoints (read: no stealth from any direction) for any meaningful strike package for example, or to have a meaningful range which it woefully lacks.
So we go back to point one, which as I admitted, I readily concede. But in that regard, there is one point that is being argued in US today: that F-35 program should be scrapped and in its place US should develop three separate fighters (because of point #2 being proven largely failed today). This would get all users an aircraft that is actually at least decent for the designed purpose, instead of an abortion of an aircraft in all usage scenarios that F-35 is increasingly proven to be.