Humans are definitely special in Marvel.
It's an interesting question.
Spoiler: ArishemIt might be that, just like humanity impressed Ajak by stopping Thanos, the Eternals impressed Arishem by stopping Tiamut. He probably saw the Emergence as inevitable, until they prevented it, which forced him to revise all his calculations. I view it kind of like completing the Crucible in Mass Effect 3 or Neo reaching the Source in the Matrix - it's an event of such technological achievement that it forces the Super AI to throw out its old programming and be open to new ideas.
I do!
SpoilerIt's worth pointing out exactly how many of Marvel's heroes are concentrated not just in the US, but in NYC specifically. Stan and Steve wrote what they knew
This film meanwhile jumped all over, from the UK to Australia to South Dakota to wherever the hell Tiamut was emerging. Sometimes "Avengers Assemble" is just not feasible for every threat, even a global one.
I seem to remember they used to, come to think of it.