> cost/benefit calculation here is way over-cautious ... theoretically induced harm... fuzzy concerns about population-level harms

It would be nice to at least have proper investigation of last alleged lab leak. When you talk about "fuzzy concerns" in light of last 4 years, I think you can not be serious.

There are cases where ultra high security virus lab sold disposed corpses on food market!!!

The only people who could do that investigation would be China, and they seem disinclined. Or possibly they already have done the investigation and aren't telling the rest of the world their results.