Gnostic atheism simply implies you possess knowledge that no gods exist, you believe no gods exist, that's as simple as it gets. I don't see the problem. I'm a gnostic atheist regarding ancient mythological gods and I'm very close to declare myself a gnostic atheist regarding the 3 most popular religions, christianity, islam and judaism. I can prove them wrong and point out the contradictory characteristics and inconsistencies in their religions/gods, that is enough for me to claim they are fake and possess no valuable content. As for the question 'is there a higher force?' I'll just answer I don't know since I can't disprove it, therefore I'm an agnostic.
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you
