Because one is foreign and one is domestic? Typically with "national security" things the foreign access is a bigger concern than domestic is. Especially so when it's a major global rival like China.

Throw heat on shitty US companies, they deserve it, but this "well what about American companies stealing data!" is just sidestepping the legitimate issues with TikTok.

>100 years ago there were less than 2 billion people on the planet

This is always so crazy to me. In one person's theoretical life the population quadrupled.