Besides what bluecalm said, if TikTok were a Canadian, British, French, German, Korean, Japanese, or Taiwanese company, the US government wouldn't have intervened in the first place.
Conversely, if TikTok were a Canadian, British, French, German, Korean, Japanese, or Taiwanese company, American would not have to fear a hostile Chinese government silently gathering data on American users, or a company repeatedly shown to be lying about using its app to do so.