"Then why not acknowledge and condemn or excuse, if you can, the Shatila and Sabra massacres, the attacks on civilians, which you denied happened despite filmed and eye witness evidence, the chemical attacks on occupied townships, the destruction of hospitals and schools....."

The massacres were truly deplorable. Israeli forces should have acted to prevent them. They were disgraced by it.

I do not deny attacks on civillians but Israel does and the evidence is not there. Both sides do lie.

I do not know of any chemical attacks on townships. Please give details.

The destruction of schools and hospitals. The guilt is shared. Hamas chose to make civillian areas their battlefield for the shielding effect and the propaganda value of civillian casualties.
Israel should have shown even more restraint.

No unequivocal war crimes by Israel.
The rockets are. Also using civillians as shields is.