Is China the 'most serious challenge' to international order?

China poses 'the most serious long-term challenge to the international order', according to the U.S. Secretary of State.
Antony Blinken unveiled the Biden administration's strategy to compete with China's rise as a global superpower.
His insisted Washington doesn't want a new conflict, but accused Beijing of becoming more aggressive.
China's foreign ministry denounced Blinken's remarks as 'typical disinformation'.So are the criticisms by the U.S. justified?
US Secretary of State Antony Blinken accused the Chinese government of undermining the global order that has allowed China to flourish economically. He said Washington must work closer with allies to counter the Chinese Communist Party’s influence.