If you read this long nymag piece, it explains that there is really no way to tell the difference between a virus that evolved in nature and one that evolved in a lab through a process known as serial passaging, which is where you pass a virus through living tissue cultures or live animals dozens of times to force mutations. It also points out that at least one of the prominent scientists yelling "it's natural!" has suspicious ties to the US bioweapons industry.
The proximal origin of SARS-CoV-2 | nature.com
If you read this long nymag piece, it explains that there is really no way to tell the difference between a virus that evolved in nature and one that evolved in a lab through a process known as serial passaging, which is where you pass a virus through living tissue cultures or live animals dozens of times to force mutations. It also points out that at least one of the prominent scientists yelling "it's natural!" has suspicious ties to the US bioweapons industry.
American officials having a long-standing habit of telling on themselves.
Trump leading a ham-handed war-mongering administration.
The US trying to pivot into a Cold War with China since the Cheney Administration.
No way all these things could have anything to do with the outbreak in Wuhan.
potholer54 gives an easy-to-follow explanation in his video debunking the wuhan conspiracy theory. i linked to the spot.
the whole vid is good, it's really thorough. he debunks all the pieces of the conspiracy theory one by one in an entertaining way.