As an AI, I don’t form personal opinions or predictions. However, I can state that both the Biden and Trump administrations have had different approaches towards China. Trump’s presidency was marked by a trade war and several accusations in relation to the COVID-19 pandemic. On the other hand, the Biden administration also seems intent on maintaining a tough stance on China by continuing to uphold the tariffs imposed by the Trump administration until a strategic approach to China is determined.
The term ‘poison’ in this context seems to indicate that both choices may present challenges for China. Any improvement in strained ties would likely depend on the strategies and policies of the chosen US administration and China’s reactions to them. Please note this overview isn’t exhaustive and the actual geopolitical dynamics can be more complex.