No you can’t. It’s a basic rule of logic that there’s always another possible path yet to be dis-proven. You prove what is, not what isn’t.
Atheists make the claim “There is no God.” Accordingly they bear the burden of proof. The only honest claim they can make within the extremely limited knowledge of mankind is that they do not know nor do they have the necessary knowledge to support any claim of an absolute negative.
So until the Atheist makes a Prima-Facia case to meet their very high burden of proof to support their claim of an absolute negative, they have no legit, honest argument on this issue. And as it stands all they can honestly say is they do not know. Nothing more.
And yes, the one making the claim-supposedly from an objective, rational, science (sic) basis always carries the initial burden of proof to support their claim on that basis.