Jackson Diehl's story ''On Temple Mount, Students Got Lesson of a Lifetime'' {front page, Nov. 5} is a very sobering account of the true lesson these Palestinian students received -- a lesson of the purposeful radicalizing of Palestinian children by their religious and political leaders and of the reduced likelihood that future generations will be able to live in peace in the Middle East.

The death of 17-year-old Ibrahim Ali Farhat Khadik in the Oct. 8 riot is, indeed, tragic. The tragedy transcends this child's death, because he was victimized by all those around him. He was used as a modern-day sacrifice on the altar of politics and nationalism.

Ibrahim Khadik was victimized by family and friends who reportedly extolled the death of this child as deserving ''congratulations and love ... for becoming a 'bride of Al-Aksa.'"

He was victimized by the intifada's cowardly use of innocent children as human shields in a war of militant nationalism.

He was victimized on the day of his death by ''Moslem leaders'' who lied to him by not telling him that the ''threat'' of Jewish demonstrators was stopped by the Israeli courts, and who encouraged his youthful idealism by telling him, ''It is a good thing to be martyred.''

He was victimized by the Palestinian militants who led him and other innocents to charge armed police, to grab their rifles and to expect that somehow nothing would happen to them.

He was victimized by those, like Hamas and the PLO, who would encourage innocents to attack Israelis with bricks and bottles, with knives guns. He was victimized by those fellow Arabs who are heads of Arab governments in the region and who have refused for 42 years to accept Israel's offers to negotiate peace.

In the end, it is this young man's classmates who are the greatest victims of all. They are subjected to the same victimization year after year; subjected to the continuing enmity all around them; subjected to a world view that rewards militancy, terrorism and irredentism. They will be compelled to live without the fullest dignity that should be their inheritance from prior generations. Ibrahim Khadik's death is a tragedy. Its symbolism for all of the children in the region is an even greater one. MARCIA WEINBERG President Jewish Community Council of Greater Washington Washington