You maybe not, but a sizable part of your population is literally dumb enough to drink bleach to "cure cancer" or whatever [1], and around half the US can barely read at 6th grade level [2].
The root problem is not that science and journalism have their issues, there is no such thing as a "perfect system". The root problem is that the American population is, at large, too incompetent to keep up with the rapid changes in modern life, and that there are a lot of malicious actors exploiting this.
[1] https://en.wikipedia.org/wiki/Miracle_Mineral_Supplement
[2] https://www.snopes.com/news/2022/08/02/us-literacy-rate/