I disagree insofar as Israel-vs-Hamas only is a lot more one-sided and only involves one nuclear power (Israel) and can't escalate apocalyptically, unlike Ukraine-vs-Russia.
In terms of military capacity, Israel holds all the advantages over Hamas, the only reason they haven't already decisively won yet being international opinion against the war crimes doing so would require. The hypothetical worst-case scenario is a nuclear superpower (Israel) carrying out a one-sided massacre, which, while it would suck for the Palestinians, wouldn't escalate internationally and draw us in unless the radicalized Palestinians were allowed into our countries.
Ukraine-vs-Russia meanwhile, amounts to the US deliberately trying to back Russia into a corner where their only chance of winning (and therefore Putin's only chance of survival since his cronies will turn on him if he looks weak) is to use The Bomb. The potential consequences are a lot worse.
You forget Hezbollah and Iran exist, I see, and Iran may already have the bomb, and hid it as a North Korean nuclear test.
The Israel-vs-Hamas thing has every possibility of involving nuclear powers/near-nuclear powers depending on what Hezbollah and Iran do.
As well, you forget Ukraine WAS a nuclear power, and gave up said nukes after the Cold War under guarantees of security from the US, UK, and Russia.
Ukraine could have a nuke pretty damn fast if they wanted to, not like they don't have the reactors to make weapons grade material and the tech know-how from maintain Russia's old missile fleet before 2014.
Russia was never 'backed into a corner'.
They just weren't allowed to rule their former vassals anymore, and there are good reasons the Baltics and Poland entered NATO. Ukraine was/is just the first step in a plan that has Russia securing the Bessarabian Gap and Poland to plug their western geogrpahic borders while they still have/had the manpower.
Putin/Russia was never backed into a corner, it went rabid all on it's own.
political capital that is never used is worthless.
Ukraine isn't political capital that will actually get you what you want, using it the way you are advocating for.
The only thing actions like that do is turn the Russian Collusion Hoax into a Russian Collusion Reality, for the GOP PR image.
You want a crisis to use against the Dems, use the one they are actively defending and which is splitting the Dems own base? The ties between BLM and Left orgs to Hamas and friends is direct, domestic viable issue you can use here and now.
There is bipartisan support for aid to Ukraine to continue, there is not bipartisan support for shielding Hamas from their crimes, and the Left have direct ties to Hamas that don't exist in the GOP.
Stop being stubborn about the aid to Ukraine, and start holding the Left's feet to the fire over their ties to Hamas. Shit, you want money/less debt for the US, then freeze and liquidate all assets belonging to groups who directly aid Hamas and friends.
The Muslim Brotherhood and their patsies/jihadi agents in the US are a direct and real threat here and now; aid to Ukraine does not threaten the US at all.