What kind of human detritus defends such actions?
I did not defend it. I deplored it.
Phosphorous is not a chemical weapon. Look it up. All national armies use it.
The devices used in Gaza were smoke generators, and not actual weapons at all, but you will remember that I deplored its use in those circumstances.
It was not "used against" anyone. It was used to produce a smoke screen

Israel uses chemical weapons and has been accused of doing so by respectable independent observers

Not true. Israel has never used chemical weapons.