Francis Boyle disagrees.  He says that the US has 13,000 scientists working in bioweapon research in a large number of labs. https://www.amazon.com/Biowarfare-Terrorism-Francis-Boyle-ebook/dp/B001FB6II6

What is this if not bioweapon research:

https://www.the-scientist.com/the-nutshell/moratorium-on-gain-of-function-research-36564

Giving aerosol gain-of-function to pathogens is not bioweapons research?

What is this if not bioweapon research:

https://www.dailymail.co.uk/news/article-8211291/U-S-government-gave-3-7million-grant-Wuhan-lab-experimented-coronavirus-source-bats.html

Funding coronavirus/bat research in a level 4 lab is not bioweapon research?

How does this differ from bioweapon research:

https://www.the-scientist.com/news-opinion/lab-made-coronavirus-triggers-debate-34502 

Certainly, nonweapon rationals can be given for the research.  Nevertheless, creating a pathogen with aerosol transmission capability is to create a bioweapon.