Atheism is easy to disprove. Watch:

Cats exist

Ancient Egyptians (as well as some current cat owners) worship cats as gods

Therefore, gods exist

Therefore, atheism is false

I am being somewhat flippant, but as I have pointed out before (then using the example of the universe as god for pantheists), unless one defines clearly what one means by “god,” then one cannot make sweeping statements such as that “there is no god of any sort.”

Or at least, one can make them, but they are easy to rebut.