Exactly -- many assertions fall very far from being prosecutable but can be enormously disruptive socially.

See the recent SCOTUS nominations for an example.

... and that's in a modern well-educated society.

In countries that are riven by sectarian and tribal rivalries, a convincing video can result in the deaths of millions.

We've already seen that internet conservatives will prey on the elderly and other susceptible types on Facebook with fake news. And it works. Even if it gets retracted or disproved later (and not everyone sees the disproving), the false image has been imprinted. I expect this to be used in this way shamelessly.

Stop the fear mongering.

Things will be fine, we'll have a few minor hiccups to resolve, but that will be it.

Some people really underestimate human ingenuity, do you really think that we won't be able to solve this issue in a manner of days if need be? Come on..

We're a few decades away from AI and immortality, and some people are worrying about fucking politics?

Think long term, and chill out.