During the Rhodesian Bush War, their forces ran circles around the ZIPRA and ZANLA with multiple battles and encounters where they'd routinely record 500:1 KD ratios like Operation Dingo, etc. They had complete freedom of action to bomb any infrastructure obstructing them, reach deep into neighboring countries and slaughter guerillas copiously.
Hell, South Africa had a dozen nukes.
Once the sanctions came on, it unraveled everything they had.
Israel is in such a precarious situation right now. Their economy depends on technology exports to an extreme degree. Cutting off that source of FX would literally half the economy overnight because cash would stop sloshing around internally from its main sources.
If that happens, all the smart kids propping up the economy will move out while you're left with extremists who want war but won't fight in the army. In fact, it's ongoing right now with people leaving the country in the midst of a war they're 'winning.'
You might think sanctions are a far-off notion, but key Western powers are breaking with America on recognizing Palestine. That's a red line designed to signal to Israel that it's losing ground. People across the world are calling for sanctions and it won't be long before they materialize.
And America? Israel's main power base are American boomer evangelicals who're going the way of the dinosaur. Like I said in another comment, their kids are either not religious, don't like bombing kids, have been radicalized by the atrocities they've witnessed, or are aligned with people like Fuentes.
I hope they can smell the coffee; if anyone had told South Africa that a nuclear power could be disarmed without a gunshot, they'd never have believed it. But, look what eventually happened.
Thanks to the ongoing genocide, America's voting demographic for the next 40 years has begun to see Israel as a genocidal terrorist state. They will be voting for the next 50 years, while the boomer evangelicals die off.