The category "gods" includes Perkunas. If by "disbelieve in the existence of gods", you mean disbelieving in gods as a category (i.e. not just "disbelieving in at least two gods"), then unless you reject Perkunas - either specifically or by rejecting some set of gods that includes Perkunas - then you haven't rejected "gods" as a category.
Keep in mind that Perkunas is just one example. We could repeat this excercise for god after god to create a huge set of gods any given person isn't even aware of (and therefore isn't even in a position to reject them).
Yes, you reject a category that includes Perkunas. That category is whatever you want it to be because it's your belief.
IMO, Perkunas fits into the god category Humans/animals +, they are basically characters with superhuman powers who influence the lives of humans. I don't believe in any of them.
I also don't believe in the supernatural, and gods, IMO, must necessarily be supernatural. So I disbelieve in all gods.
This is totally irrelevant though as there is no requirement to have to rationalise a belief to prove that you do or do not believe it. It is not an academic thesis, but a personal, subjective epistemic position that requires absolutely no rationalisation or justification external to the mind.
You're joking, right? You don't see how the fact that nobody has ever disbelieved in the vast majority of humanity's gods at a time has relevance on whether someone might have rejected gods?
When you say "I believe...", your statement of belief is not negated in any way by someone pointing out "But, someone else believes..."
Are you counting ignorance as a type of disbelief?
I'm counting my beliefs as being representative of my beliefs. I'm not sure what else should be included when representing my beliefs other than my beliefs.
You seem to think my beliefs are to some extent contingent on other people's beliefs in order for them to count as my beliefs.
Because every god you aren't aware of is an example of a god you haven't disbelieved in. The statement "I disbelieve in gods" is only as true as the statement "I disbelieve in (insert name of god)" for the god you disbelieve in least.
You have ideas of what you believe are gods, and if you don't believe in anything that fits into these ideas then you disbelieve in gods.
It seems like you're assuming that every person has a bizarre definition of "god" that includes the notion that only gods that the person is familiar with qualify as gods. Why?
Only things that I believe are gods count as gods in relation to what I believe are gods. What other people unknown to me believe are gods has no effect on what I believe are gods at this point in time.
We are talking about belief, specifically my belief.
You are basically arguing that my beliefs don't count as being representative of my beliefs if someone 10,000 years ago held a belief that is different to my beliefs.