The F-35 is the Curtis P-40 of our day, Americas export fighter. It may have its faults, but it serves the purpose.
Moreover, although doubtless there are platforms that are superior in some aspects, the aircraft does not operate in a vacuum, as has been pointed out.
What that implies is that the buyer accepts a very close integration with the US industry, a relationship which has big strings attached, as Turkey has demonstrated.
It seems implausible that Israel would be upset by this.