You do know that not all Jewish people are Israeli and that Israel is a state and the IDF is a military force of that state? Unfortunately, you seem to have bought into the view that any criticism of Israel = antisemitism.
Just to be clear, I don't condone the chant. I don't think all IDF members should be killed. Many should be punished. Same as I don't condone killing all Hamas members. I'm happy for them to be punished, locked up and the group disbanded, but being part of a group should not result in a death sentence. That is not just or moral.
My objection is your assertion that saying "kill all the IDF" is the same as "kill all the jews".