It isn't all Israel. North Korea, Russia, and Iran have long been known to be where most cyber crime comes from. Israel is there, but they are an also-ran compared to the others. (but Israel does tend to have more sophisticated attacks). The US also has done a large share, but mostly that is government attacks on other governments (that we know of).

Israel has a lot of enemies that going against them. Which is why they have incentive to be good at this - to attack back. Corporate attempts are just ways to make money.

I'm going to stay out of the political issue of what any actor should do.