I am perhaps biased, being in higher education, but I think education and training can go a long way towards helping people to be able to fight this threat on their own, to be able to recognize that this is disinformation and understand where it comes from and understand that the purpose is not to persuade but to disempower and divide. These are the things that I think are often forgotten.
Disinformation typically plays on emotive characteristics or emotive themes, so I think having a dispassionate response, a trained response, is perhaps the most efficient way to be able to counter it, because widespread suppression is not a democratic response to this kind of threat.