I could definitely believe that some weibo users are very interested in Biden's stepping down. Xi's decision to stay on passed the original term limit was quite controversial even among some of his supporters. Stepping aside when the moment requires it is the hallmark of that paragon of Confucian virtue, the Duke of Zhou.
But no one in the world "envies" our political chaos. We've done real damage to the global reputation of democracy and given example after example for the world's autocrats to point to when they argue that democracy is self defeating.