Having said that, on the face it seems like the classic anti-semitic trope but then, as you say, you find out that actually a lot of the heads of these companies ARE zionists and you have to ask if asking the question is actually not unreasonable.

This shows how tough it is to force oneself to ask THE question when all our moral and social conditioning is screaming in our brains not to dare to ask it because it's a "classic anti-semitic trope".