Stupidity. It's the same as detonating a grenade under your feet. Nuclear weapons are for the masters, not for their puppets who live next door to you.
Detonating a grenade under your feet would be nuking the 1 out of 2 powers that can ensure MAD against you. US can also fire back you know?
Russia will never nuke the US until both it and China has exhausted every single weapon systems first.
If hypothetically Russia needs a nuclear level deterrence move, China would either give them the equipment to sink an US carrier conventionally or ensure Russia uses the nuke on non-NATO soil. We're however extremely far from that scenario.
This stupidly dangerous idea of Ukraine getting nukes and warding off Russia has severe implications for China/TW as if it works in Ukraine then......a few tactical nukes in Taiwan might very well ward off the Dragon and its desire for reunification-the world is on a very slippery slope and it shows the utter desperation of the US/west.
These are completely not comparable situations, Ukraine is it's own country while Taiwan is inside China. Tactical nukes in Taiwan is US nuking China like it would be Russia nuking Ukraine if Russia sent nukes to the Donbass.
Meaning we will activate everything to defend against the nukes and if it fails, send the retaliatory MAD strike.
You spread a very dangerous and aggressively revanchists position when you imply any equality at all between Russia's expeditionary war and China merely defending itself. This is a party line spread by the extreme US nationalist who want to annex parts of China and should not be parroted by anyone who wants peace.