Where are the Gods?

[floramon]

In Avengers 4, Thanos snapped his fingers and everything gone. How about the Gods? Can Thanos kill the God (make them vanish)?

In Crisis (TV crossover), Earth is vanishing one by one. Will God vanish as well?

If these events won't affect the Gods, then they don't need to appear and do something. Can I say that they are selfish?