There has been an extensive analysis by a virologist on Reddit[¹], who claimed that, very simply, SARS-COV2 is a so-called "mosaic" virus, while man-made viruses are inevitably "chimera" ones. The article does not seem to make this distinction.
The virologist also chimed on HN (besides, calling BS on people who were, out of ignorance, spreading false beliefs), but it seems he's not participating to this post.
It'd be best to have the opinion of a specialized scientist, in order to to have scientific clarity before starting the political arguments.
[¹]=https://www.reddit.com/r/science/comments/gk6y95/covid19_did...
Occam's Razor, to me, suggests that it's more likely the virus came from the nearby infectious disease lab than from the wet market that operated probably for centuries.