> let adversarial countries own and control communications infrastructure
This is an exaggeration that a social media platform for short form content is communications infrastructure, akin to a cell tower or fiber optic line. I'd the say the same for your mention of ITAR in a thread about, again, a social media platform.
If we were serious, there would be regulations for all social media, not just forcing of U.S. ownership then saying "all good, this can't be bad since Americans own it"