The wet market stands out as the most likely culprit, because conditions existed there that are identical to what conditions we would expect a pandemic to arise from, because every other pandemic ever was caused in the same way in the same conditions, all of them, not just some, every single pandemic known was caused by conditions precisely, exactly like those found at the wet market. And, again, there have been dozens of lab leaks where contagions escaped labs, and as of yet, none have caused any pandemic, not even outbreaks.
So first of all, you need to prove it is even possible a lab leak could cause a pandemic. Because you are assuming that, and it certainly is not clear that is the case. In fact, all evidence points to the contrary... because it has never ever happened. Not ever, not even once in 100 years.