They exist in your imagination. If it exists in your imagination then it can be manifested into fruition. All one has to do is believe. Existence is of the imagination. Non-existence cannot be imagined, therefore it cannot and will not exist.
Stop trying to win, and start understanding truth. I'm not here to battle, I'm here to share.
There is no logical proof requiring presentation. The proof is you and I, now must come acceptance. I will wait no longer for humanity to wisen up.