Mr. Smith is entirely immaterial however in the case of the resurrection of Jesus.
If he is not able to formulate logical thoughts out of being dead or not even knowing what Jesus is or cannot decide then he is immaterial to the discussion.
However, Mr. Smith is not just leaving it at not being sure.... no Mr. Smith comes along and starts claiming that the burden of proof lies upon the people who deny that Jesus did not resurrect and does not accept their claim of proof as the lack of proof of it.
Mr. Smith is claiming that claiming Jesus was resurrected is equally valid denying it and both the claimants and the deniers have to prove their cases and does not accept that the claimant only has the burden of proof and that the deniers only have to cite the lack of proof for the claim as a valid proof for its falsity.
Imagine if the OP were
Can one disprove that Leprechauns stash pots of gold at the ends of rainbows?
Would the answer of Mr. Smith be that we still need to disprove it if we deny it is true despite the OP having failed to proven?
Would Mr. Smith be so adamantly and vehemently and determinately claiming that disproving stashes of gold under rainbows is a logically attainable quest and thus we have the onus of proof otherwise we remain equally unjustified as the OP who has not proven it?
In other words Mr. Smith is claiming that the lack of proof for hoards of gold under rainbows is not sufficient disproof of it. And he requires a separate disproof other than the lack of proof of it.
Now tell me is that logical?