I don't think anything.So, you think US can defeat both Russia and China at the same time ? US will be obliterated by Russia before it can destroy Russia. Russia is winning the war in Ukraine, not US.
The US spends more on its military than China, Russia and the next 8 countries combined.
Their explicit doctrine is to win two wars the same time. They have done it before and have the capacity to do it now.
These are all facts, not feelings.