Yeah unfortunately that isn't how that works at all. I can't ever prove that pink flying dragons don't exist. However the Onus is on me to prove they do, if I am making the claim, HOWEVER, while that is a very cliche'd line, understand I am NOT a believer that all things claimed or rather believed NEED to have evidence for all or be PROVEN.
But in the conventions of empirical science, the law, and the simple way we live our lives, demands a sustainable and reliable process. What your spiritual predilections or rather sources and inspiration for reason are irrelevant.
If YOU are going to make a claim ANY claim and say other people ought to believe it, then you have the burden.
And by the way there is no PROOF there isn't, but that is irrelevant. If someone asks for consideration from everything from observation by others or participation, YOU have to back that up with Logic or Reason or both.