If not Israeli ones, wouldn’t it be Russian or Chinese made ones instead? There are no shortage of weapons manufacturers in the world. Doubly so for cyber weapons, where the cost of entry is so low.
Does that sound reasonable? It is a very week justification and raises the question "are we the baddies?".
I don't see how we have the moral authority to point fingers here.
And in the case of cyber weapons, NSO group, an israeli company, do sell their services to anyone willing to pay.
Maybe there are actual examples, but this isn't one of them.
In any case ComputerGuru is rightly distinguishing between stolen leaked weapons versus deliberately selling them. He's not saying that that it hasn't happened, merely that he chosen example was trash.