As we all know, the proportional loss of life on 10/7 has been called worse than 9/11 due to Israel losing 1000 civilians out of a population of 10 million. Compared to the US losing 3000 people out of roughly 300 million, this is a tenfold difference in magnitude. Hence, "as bad as 10 9/11s."
The Palestinians, however, have lost 3000 civilians from a population of 2.4 million, which is over a hundred times worse than the real 9/11. So the Palestinian 9/11 is over ten times worse than the Israeli 9/11. Also, they actually have collapsed buildings and smoking rubble.
In summary, the Israelis are currently waging a war on terror in Gaza. The Palestinians are getting ready to invade America, where the Israelis trained for their attack.
I said the 'war in terror' in an eye rolling way, probably should have put /s next to it as hard to put expression into text. You focused on that and not the 'nothing should exist in the Middle East if they lived up to that principle' part.
The last war I can actually think of where the principle was invoked properly to any extent in the west might actually be the Falklands war, the Golf war is too murky to say that especially since they didn't end it in Iraq then and there. Before that, probably the Korean war just for the 'Temper Temper' incident.