You can’t go too far with a project that requires foreign funding and technology. The only hope for the Lavi was if they stopped relying on US assistance.
There is a ton of IDF projects which get money from US, one is Arrow, another is Iron Dome which come to mind. But yeah they should have provided their own funding, because Air Superiority is a strategic goal for Israel,and you cant get it long term if you dependent on foreign supplies for your aircraft. Just like Frenchies decided to cut the supplies of Mirage to Israel after 6-day war. US can do the same thing, considered we had such a nice guys like Obama and Clinton in power.