(Here we go again. This is where I am typically and unjustly accused of siding with someone else's position as well as of having endorsed the arguments they put forward in an attempt to support their position when I in fact oppose both sides of the issue as they have been presented.)
Proof of the non-existence of something asserted to exist can only be offered based on a knowledge and understanding of that which does exist which by virtue of existing makes the existence of that which does not exist untenable.
Absence of proof against non-existence is not proof of existence. It is the burden of those who assert the existence of something to provide a definition for and proof of its existence. Apart form definition and proof, assertion of the arbitrary is devoid of meaning or merit. Proposing something which in the absence of any defined known qualities makes discerning proof impossible is not justification for acceptance of or belief in that which has been proposed. Belief in or asserting the existence of the arbitrary by virtue of the absence of proof for it and with total disregard of the evidence against it, is unjustified.
Belief in the absence of knowledge is proof of nothing more than ignorance and a lack of understanding.
https://www.youtube.com/watch?v=y1ehMrK3itM