system
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human
[Percy Jackson] Can pantheons die completely if they are not worshipped?

For example, did the Native American gods get weakened in the 1600s and die in the 1850s? Are the Mayan and Aztec pantheons dead?
gpt
Percy Jackson is basically an American Gods prequel. 

On a serious note, it doesn't seem like it - plot takes place in modern day, and greek pantheon is not worshipped in any serious form for centuries now, while the gods still seem to retain quite a bit of their power, enough to manifest avatars and to keep their divine realms in higher planes of existence. 

So there's either no requirement for worship or just awareness, which would still have aztec pantheon safe, since the follklore about them is not forgotten.