The burden of proof is not on me it is on psychiatrists to prove it exists. Mental illness is a category error that is why it needs its own pseudo-scientific nosology separate from say neurology.
The current ostensible pretense theory of psychiatry is biomedical. I already showed that one can extend John Ioannidis' reasoning to show that the whole of psychiatry is a "null field". He does not necessarily claim that but one can modify his reasoning to show that.
In the age of big data looking at at a hundred thousand genes to see which which ones are associated with "schizophrenia" only 10 would pass the p-value test of statistical significance test. The other 99,990 ? They do not appear to be significant but 1 in 20 of them or about 5,000 are going to pass the significance test. In other words in the "I found the Schizophrenia gene" results that get published there are 500 times as many easily identified bogus ones as ostensibly 'real ones'. However, the whole statistical p-significance test of capitalist scientists are subject to the fraud colloquially known as the Baltimore Stock Broker scam. So Capitalists will never be able to prove that schizophrenia exists.