Why do you think it would need to be a conspiracy?
Because you're assuming coordination between different groups, even when it doesn't make sense and goes against their interests. This is like the third time I've brought this up - Germany relied heavily on Russian gas, then didn't shut it off, which led the US to blow up the pipeline. How do any of those events make sense in your narrative? Is all of that part of an elaborate ruse to trick people into thinking that my narrative is correct and yours is wrong? It's nonsense.
The Europeans simply didn’t see Russia as a potent threat and felt entitled to not giving Russia the respect it deserves.
And this is where I think your narrative is coming from. It's all about Russia surpassing everyone's expectations and proving how strong and powerful it is, and it's like, every event has to be somehow contorted to fit that narrative, when there's much more coherent ways to fit them together.
Tbh, it just seems like this is what you want to believe, in which case I can't stop you. You're not looking at countries' actions and you're also not looking at class interests, it's just "everybody hated Russia and thought they were weak when they were actually big and strong." It's a very biased and oversimplified narrative that I find hard to take seriously, I'm just as skeptical of that as I would be about one that's brazenly pro-Ukraine tbh.