Top U.S. general urges Google to work with military
reuters.com
reuters.com
https://www.blog.google/around-the-globe/google-asia/google-...
You can be sure every bit of that research will end up in the hands of the Chinese government and military. So their arguments for not working with the Pentagon are thus void.
Also hypocritical considering DARPA funded Larry and Sergey's research into what would become Google
Maybe Google thought the $$$ outweighed any moral concerns with China but not with the DoD.