But the point of imperialism rising is valid, US might be losing grasp but Russia and China are grabbing what they can to oppress as well.
China doesn't have finance capitalists that influence their foreign policy. Their banking sector is nationalized.
Also I wouldn't call Russia's actions imperialist as they haven't installed foreign governments for labour surplus and commodity extractions anywhere (yet).
Russia wanted to be a part of Western imperialism but the US rejected it, because it wanted Russia to be on the menu instead of at the table. The post-Soviet neoliberal shock therapy was a Global North plundering, which in Russia started under Yeltsin and ended under Putin, and the US still wants to finish the job it started.