“Destruction of the Assad regime and expulsion of Russian and Iranian forces, which would weaken the strategic position of both those nations, is the best thing for us and for Israel.”
Then why is Israel cooperating with Russia? And why do the Christians of Syria welcome Russia bombing their persecutors?
The policy you advocate - siding with jihadists against Assad - will mean more Christians martyred.
Having China, Russia, and Iran next to Israel spells disaster for that nation.