Do you mean governments or people?

People don't have much power here. Other than boycotts, what can people do?

For governments, Israel is fairly powerful. They have powerful lobbyists, and aren't shy to leverage claims of antisemitism against anybody who speaks up against Israel. In many cases, there's also the guilt over how jews were treated in WWII. This is one reason Germany is so incredibly pro-Israel. Then there's the fact that Israel is still more-or-less a democracy, which makes it unique in the middle east. It's the one country in the region pushing back against various Islamic fundamentalist goverments, movements and terrorist groups. Many countries don't want to lose that "friend".

And then there's spyware. Most of the best spyware in the world is produced in Israel. Some cynical people would say that countries don't want to lose access to the world's best producer of spyware. Some even more cynical people would say that that spyware has already been used on politicians and Israel is using it for blackmail. Who knows what the right level of cynicism is.