Quoting a guy who doesn't have a fucking clue is not 'circumstantial evidence'. It's bullshit.
"Experts have suspected the SARS-CoV-2 virus similarly originated in bats. Researchers in China — including at the Wuhan Institute of Virology — have said the virus shares 96% of its genome with a bat virus collected by researchers in 2013 in Yunnan Province, China. (While that’s quite similar, Dr. Stanley Perlman, a professor of microbiology and immunology at the University of Iowa who studies coronaviruses and a pediatric infectious disease physician, told us it would be “impossible” to take such a virus and make the kind of changes required to turn it into SARS-CoV-2 in a lab. One would need a virus that’s 99.9% similar, and “in theory it might work.”"
https://www.factcheck.org/2021/05/the-wuhan-lab-and-the-gain-of-function-disagreement/
So, if the virus discovered in 2013 was .1 percent different than the CoV-2 virus 'in theory, it might work'. It is not even CLOSE to that. There is no way that virus could have been manipulated in the lab and made into Covid-19. It's bullshit, but you cherrypicked someone saying maybe and that settled it for you. Glad you never treated me or a family member. You must have sucked at your job.