“proportionally”
is that of an attack’s hostile actor/civilian ratio.
An attack that might kill one ordinary HAMAS fighter and 50 ‘civilians’ is improper.
Our weapons have probably killed over 50,000 Russians and probably only a few American mercenaries have been killed plus maybe a few dozen American ‘advisors’.
Is Russia unhappy about that? Yes.
Will Russia respond in the future? Yes.
SINCE WHEN IS WAR A GAME OF “CAPTAIN, MAY I?”