You have to acknowledge this is incredibly weak logic. “A thing is possible, therefore it happened.” Is this molecular evidence the Furin Cleavage Site? Cause that was peddled basically as a lie - they occur in nature just fine, it’s also used in research.
I’m unaware of any compelling evidence for the lab leak theory, but I will acknowledge it’s basically impossible to disprove. We don’t know where most diseases arose (or where they came from) - it’s just we mostly don’t care, unlike with COVID.