The power of nukes is wildly conflated by Hollywood. The only nukes which could completely destroy an entire city are MIRV ICBMs, which I highly doubt Israel has at all, or that many. Still, the best guesses for Israel's nuclear capabilities, is that they have 80-400 nuclear weapons, ranging from 5-200kt per nuke. Those are small yield nukes. For reference, even from the larger yield 1 Mt nukes, you can survive it laying down in the 3 foot ditch 1 mile from detonation (my dad was an nuclear, biological, and chemical warfare specialist, he taught me a lot).

Let's assume Israel enacts the Samson option, and goes full vindictive against the goy. Given their previous behaviors on inflicting undue civilian casualties, they would most likely target city centers to kill as many civilians as possible. This would allow them to destroy 80-400 city centers. Given their complete lack of, or extremely limited capacity of MIRVs, they wouldn't destroy the entire city, just the city center, leaving the suburbs intact. Given the current immigration policies pushed by globalist NGOs, most Western cities are now minority White, or in the process of becoming that, and are now absolute shitholes. They're filled with Bolshevik style brutalist architecture and mega corp headquarters. Would anyone really complain if all Western cities suddenly disappeared? Perhaps a few historical landmarks, but that's it.

Let's assume Israel intentionally targeted White population centers. Given the current White flight dynamics, away from city centers and toward rural areas, which are insanely, massively huge in terms of land, Israel would only be able to kill a very minor fraction of White people.

Thus, White people shouldn't fear the Samson option, and if they targeted city centers, given the problems we're facing, in many ways it would help us (if you understand the probable dynamics in the boog 2 scenario: city vs rural).