That timeline has way more to do with the corrupt politicians than consumer behavior.
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Both in the sense that the original semi-bipartisan law should've been ruled unconstitutional [0], and also in how the Republican party turned around and broke portions of that law for months until Trump could ensure the assets were handed to his major donor buddy--and fixing none of the original PRC influence issues. [1]
[0] https://www.aclu.org/news/national-security/banning-tiktok-i...
[1] https://www.techdirt.com/2025/12/19/tiktok-deal-done-and-its...