If someone uses a gun to harm someone else and it's not in self-defense or in defense of another, then that's a problem with the person, not the gun.
As far as censorship goes, Democrats were all about censoring people during COVID. They claimed it was to fight "disinformation", but it turns out that a lot of the disinformation was actually true. The Twitter files show the extent to which the government and mostly Democrat officials pushed to censor anyone that went outside the approved narratives. Some local governments even threatened doctors with taking away their medical licenses.