Once a nuke is used, depict its yield, NATO will get involved. WWIII starts at that point.
The same can be said for the United States to a surprising degree
Our domestic energy production Is way down and our strategic petroleum reserve is depleted to a critically low level that cannot be replenished quickly due to cutbacks in domestic production
China is seriously ramping up efforts to move on Taiwan and they have built up a very impressive military expansion and modernization based on stolen Western tech and Western funded and trained modern industrial base
Europe has no stomach for war and America is weary and disillusioned after the disasters in Iraq and Afghanistan
Biden has declared war on OPEC and back stabbed the Middle So they are backing away from American support and are looking for new partners like China, India and other wanna be BRIC aspirants
Millions of illegals are coming over the Southern border. Many come from Cuba, Venezuela, Iran and Central American countries hostile to the US. They form a serious 5th column threat to US national security and they are allied with the Antifa domestic terror network and with Cartels
A coordinated offensive by Russia in Ukraine, China against Taiwan and well targeted domestic unrest and sabotage could be remarkably effective in allowing Russia to secure Ukraine, China to secure Taiwan while simultaneously enabling American authoritarians from furthering their domestic agenda
The pieces are being put in place for just such a manufactured crisis and the Western democracies have demonstrated that they have neither the will or the resources to put up a fight to defend Ukraine or Taiwan, much less risk a full scale nuclear exchange with Russia on their home countries
Fantasy?
Perhaps
But never in my wildest dreams did I expect Russia to invade Ukraine in the first place, much less get bogged down the way they have been. And sure, the Russians have had serious problems in Ukraine, but they have also had to deal with NATO countries depleting massive stockpiles of irreplaceable weapons and war reserves that they would need if the conflict expanded
Russia, on the other hand, is mobilizing and their lower tech weapons are easier to ramp up production on and they are not subject to supply chain constraints on sophisticated microprocessors and sensor components
Plus Russia has plenty of fuel and energy resources to draw from while NATO countries have energy shortages
If you look at things a certain way, maybe not so crazy after all.