Maybe the decision not to come to Europe is simply a result of poor appreciation of the public mood. If so, think again. If that is not the case there must be another reason.
With an aircraft as mature as the F35 should now be - not being able to turn up for a couple of uk airshows is a huge indication of the problems with the whole program(me).
And
afaik - the turkey still has not done a ski jump - how many years into the project ?