Your "realistic way" is the mass slaughter of innocents in an ongoing genocide.
That's not "realistic". It's monstrous. Even if it were true that it was your only option for your country to survive (which is a ludicrous claim, in and of itself), it would simply be an argument that your nation shouldn't exist as it currently does. That you're in the same category as the USSR, North Korea, or Nazi Germany. I'm not the one implying that, here, either, just to be absolutely clear. You are. That's the only conclusion that can be drawn from a claim that the acts of genocide are necessary.
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Or the Transatlantic Slave Trade. Or the Holodomor. Or the Holocaust.
The perpetrators of human rights atrocities and mass death campaigns always claim their death machines are "necessary".
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As opposed to the Zionists who want a Jewish ruler from the river to the sea.
The two sides here aren't particularly different in goal or tactics. Just in strength. Where Israel has basically all the power in the region.