Steve,
What a trashy post.

Saying that requires know knowledge or wit.
Identifying actual errors does. Presumably more than you possess.

So cluster bombs weren't illegal so that makes it ok to scatter the bomblets all over farmland to blow kids' feet off for decades, does it?

No, but the danger was recognised by no-one, not just Israel, so why single them out.
They are still being used in Syria by Russian forces though.