There's a difference between posturing and hostile action. I would still consider whatever Europe was doing posturing rather than a genuine attempt to bring down China. Those sanctions are symbolic rather than targetted towards key industry like the American trade war or extreme tariffs on Chinese good.
Let me see if I understand you right. European warships drilling with Japan and US in east asia is merely a posturing act, while a very small PLA contigent (a company or smaller) is excessive and damaging a "good" relationship?
I tell you what is really excessive and damaging for China to do IMO, providing weapons (missiles, radar, AWAC, fighters, tanks etc.) to Russia excatly like NATO did in Ukraine. What China does now is just a veiled message.
Currently China is immensely benefiting from the trade surplus it has with Europe, at the moment where Ukraine is a pain point how does it benefit China to harden European resolve? Whatever security gains and economic gains they get from a Belarus alliance pales in comparison to the consequences off a pissed off Europe.
One can say the same thing about Europeans. Whatever security and economic gains Europe get from "East Asia NATO" pales in comparison to the consequences of pissing off China. The US-aliance in east asia is a headache of China just like Ukraine to Europe, you should see how China feels about Europe.
You still hold the idea of "Everybody can annoy, poke and kick China whiel China should stay still". While I don't advocate throwing the first punch, but I do advocate returning a kick as Chairman Mao said "人不犯我我不犯人，人若犯我我必犯人". Aggressive people only understand the language of force.
In essense you reminded me of a Danish diplomat who I had an argument in 2014 about Ukraine. He argued that China's doing nothing about Ukraine will piss off Europe and threatened China for consequences. I can't believe after 10 years there are still people toing the same line.
