The origin, truth be told, is basically irrelevant, just like the identity of Satoshi Nakamoto. We live in the world today, and while the story of how we got here might be somewhat academically or historically interesting, it's about a million items down the list of things that are actually important right now.
if it did leak from a lab, we should shut these labs down.
Instead, the significant economic and health costs could have been significantly mitigated by the response of governments. That’s going to be more important for preventing harm in the next pandemic. Even if it was a lab escape, how does shutting down the labs help for the future? They are also a defence against the next pandemic
Frankly, any solution that does not in some way involve "how can we prevent or reduce the incidence of this kind of problem happening" is political nonsense to me. Even with the most effective defensive protocols, a pandemic-grade virus costs a staggering amount of resources to deal with.