

This is a bad read on the situation. China would be coordinating this with EU forces, not with Russia. It would make the peacekeeping forces a more varied group rather than being entirely consisting of NATO members.
You can argue about ulterior motives but you’re fundamentally misunderstanding what’s being reported here. China isn’t coming on behalf of Russia as a counter to EU peacekeepers, they’re proposing to join the EU peacekeepers so that they’re not comprised solely of Russia’s enemies.
It’s a sign that China is stepping up globally.
Some people when faced with an overly simple explanation doubt their own understanding and try to see why experts and academics say otherwise.
Others assume they know better than the experts and everyone is an idiot but them.
Maybe you know a lot about a topic, and see others choose one of those paths when questioning your area of expertise.
Which kind of person do you want to be?