If you only criticize civilian casualties when Palestine resists, then your concern isn't civilian casualties. Your concern is Palestine resisting massacre.
Regardless of the number of people involved in this conflict, nuclear escalation could only increase the number of deaths. There is no world in which atomic weapons solve this issue
I mean in theory you can assume that this conflict will go on for ever and with current causalties in only a thousand years we already broke even of we bomb them now /s