What philosophical evidence is there against believing in non-physical entities?

[LostLocke]

But there is evidence, virtually all human societies have records and testimonies of people who had contact with spiritual entities.

That is not evidence so much as it is thoughts led astray by fancy.

Right. Testimony and "records" are anecdotal. There hasn't been, as of yet, any actual evidence. It seems odd that as technology and data gathering exploded, the number of these accounts had dropped dramatically. It's almost as though people were just telling stories, and as our ability to test and call people out on these stories, they just decided to stop telling them.