system
Given the following post, respond as if you're commenting on Reddit:
human
[40K] How strong are the Chaos Gods?

Are they as strong as the Emperor? Stronger? How many primarchs does it take to kill one?
gpt
The Chaos gods are inconceivably vast amalgamated intelligences created from the thought and emotions of mortals reflected into the immaterium.  

They can be hurt, diminished, and changed, but so far as we know they can't truly die.  No more so than you could kill a portion of the night sky.