RNA is still a complex compound, which has never been observed to form by inorganic means, AFAIK. Besides, even if RNA formed spontaneously, how would it suddenly become an enzyme? Enzymes are parts of the functional system of living cells. I.e. they are manufactured because they have a purpose. A “primordial soup” has no purpose.
If you are seeking truth, read this.
http://www.panspermia.org/rnaworld.htm
“An RNA-dependent RNA polymerase ribozyme is the foundation of the entire RNA World hypothesis,” Robertson said. “With that, you would have an RNA capable of making copies of itself; mutations or errors in some copies would result in variations that would be acted on by Darwinian natural selection, and the molecules would evolve into bigger and better ribozymes. That’s what makes this structure so interesting.”
Indeed many of the protein enzymes we have still contain a small RNA section where the action happens.