Define the US here. Is it the government, the people, the business interests of the private sector?
Each one of those has different interests, often competing ones.
In any functional nation the people's interests should prevail, and it seems to me that any information capable of swaying the public's opinion is informing them that their interests are being harmed in favor of other ones.
I wonder how do you know "the interests of the majority of people" is to ban Tiktok...
The interest of the people is to have a peaceful coexistence and cooperation with China, while the interest of the military-industrial complex is to keep the tension high at all times so that more and more money is spent on armaments.
Who do you think the US government will favor in the end?
Who has more power to determine the result of the next elections, considering that to run a presidential campaign you need more than a billion dollars?
No citizen gains from war except the few that sell weapons and want to exploit other countries.