[dmatech]

Americans are a peculiar people. You might save a few lives in the short term by censoring ideas that cause harm (which are usually legally protected even if they're false). The problem arises once people get wind of the fact that there is centralized government influence on what they're allowed to say or hear. Americans generally don't believe their governments to do this fairly or competently.

So a lot of people fall into conspiratorial thinking about what they're not being allowed to hear. They also lose trust in a government that doesn't trust them in return (or allow them to make their own decisions). So there are very negative second-order effects to going down the route of paternalistic censorship here.