'The point is that collateral damage will be high"
Yes, well that's what happens in a war, isn't it? It's what happens when Hamas control centres are located inside mosques and residential buildings...as in this case.
"Collateral damage" as a consequence of Israel's defensive actions do not equate with Hamas' acts of.... - indiscriminate rocket fire into Israel's residential areas, towns, villages and cities - taking of civilian hostages - parading hostages (both alive and dead !!!) through the streets of Gaza - using children as protective shields - attacking Israeli villages, towns and kibbutzim and killing innocent civilians .....all of which have been done during the last 20 hours.
