World leaders are not that dumb to think about war and end the world. Because once you started a war it means that many explosive weapons of Mass Destruction will hit each and every country. Do you think that will make those riots or conflict between the country to stop? Before you think of a war, that's right that you need to have a lot of resources so that you will not be outpowered by other countries.
Leaders should help each other surpass and overcome their economic crisis, they should help each other for the sake of its citizens. All lives matter and i know that some people are scared to death, that's why the governments should focus first on the Covid-19 pandemic and stop that war issues.
That will not help each and every one of us to become more stronger and united. Spending most of the government's budget for a war is not a worth it idea.
What if the leaders of the major countries in the world have their own interests? They will use all authority on behalf of the state for personal gain. With the support of oligarchs and plutocrats, the leaders of the state will perpetuate their rule for life. Xi has been a successful resident for life, Putin is in the stage of becoming a modern Tsar, while Trump is looking for ways to build a dynasty.
The current conditions are conflicting interests that are non-state actors (globalists), China, the US, Russia, and Trump and Putin. Trump's policies do not necessarily represent the interests of the US people, nor can Chinese policies represent the interests of globalists.