A simple argument against God

[Aegon]

[P1] If there is no evidence for God then God is unlikely to exist
[P2] There is no evidence for God
[C] Therefore God is unlikely to exist

This isn't even really an argument, at least not one that could convince anyone who isn't already an atheist. Obviously there is plenty of nuance to interject into your second premise and anyone who believes in God or is even a certain brand of agnostic would take issue with it.