I don't know if they're valid. I think my point is structured in such a way that it doesn't matter in this context: those concerns, if they are or were ever valid, are not rendered invalid by the points that the above commenter was making. I don't believe I have the background to comment meaningfully on whether TikTok is an actual security threat to US citizens or whether the US government would be hypocritical in banning TikTok for such a reason. The question of hypocrisy also seems like a separate one to me (i.e., should one not do the correct thing because it would be seen as hypocritical by some?).