China's debt is no different from other countries. Japan is above 200% GPD for example, Italy, Spain, Greece, France... all have debt for decades.
Japan, italy, spain, greece and france. Are all too far into debt to donate funds to ukraine.
Eventually the united states will be as well.
What happens then? When russia still has low debt and can afford to mobilize.
The united states spent more than $12 trillion dollars on military operations in the middle east. Eventually that money runs out and nations cannot defend themselves (or ukraine) without bankrupting their budget.
Actually all those countries have already donated military material to Ukraine. Debt becomes secondary when survival is a problem.
The US has implemented a 40 Billion plan. The help line, huge for Ukraine and Russia means just an minimal part of the US budget. Again, it is a question of sizes:
While the U.S. ranks as the world's largest economy with a GDP of $21 trillion,2 Russia's nominal GDP comes in at $1.48 trillion. 1 In terms of GDP, Russia trails much smaller countries, such as the United Kingdom, Italy, and France.
And this year, US GDP will be largely untouched and growing. Russia's will not.