1. Gain of function research primarily uses samples collected from nature, and seeks to stimulate their evolution in as natural a way as possible to learn how viruses evolve in nature. If such viruses were to escape the lab, they would appear "natural"
2. It's not xenophobic for people from the US to suggest the possibility of a lab leak, because the US was itself funding gain of function research on novel coronaviruses in the Wuhan BSL4 lab
3. Lab leaks happen more often than most people realize[1]
[1]https://www.vox.com/future-perfect/2019/3/20/18260669/deadly...
Frankly, it would be irresponsible NOT to provacatively suggest this thing we have no evidence of, repeatedly.
Zero evidence because independent third parties have not been given access.
An event of this magnitude requires a free and fair scientific investigation.
Absent that, one theory is as good as another.
Downvoted as always by the irrational.