There is no denying that Israel has more complicated and restrictive tax laws than the US. That is the principal reason that many Israeli companies establish their HQs in the US. However, laws change, and things have gotten much better than they were several decades agao. There are pelnty of firms that start here, and stay here.
Of course, high taxes are a problem here, but most Israelis understand that we have problems faced by few other countries. We have a relatively small population, with huge defense needs, and huge infrastructure needs. We have a high number of elderly and children, and universal health care. We also have a large and growing segment of the population that contributes nothing to the economy in the way of production, and a system that encourages young people to join that system.