I'm not disagreeing with you on the implications of having engineering teams in China, I think you would like to put that paragraph in your original post to give some context.
[0] Tech job postings in US: https://zoom.wd5.myworkdayjobs.com/Zoom/0/refreshFacet/318c8...
[1] H1b filing on engineering positions: https://h1bdata.info/index.php?em=Zoom+Video+Communications+...
edit: better formatting and grammar