The difference between "the paper is out there" and "there's a button to do this" is quite obvious in cases like software exploits. A report of finding a vulnerability rarely leads to a massive automated exploitation campaign, but if that report also contains a proof of concept the amount of automated attacks radically increase. I believe the same is true for many other types of crime: even a mild bar to entry will prevent a significant amount of criminals from advancing their techniques.

I think the negative impact of these voice changers is much bigger than the advantage we gain as a society. Criminals will always exist, even crafty ones, but "we can't prevent crime so let's not bother trying to do anything about it" is not a great take in my opinion.

TOTC is about resource depletion. GYI. It's not applicable here.

To respond to the actual post, there is a lot individual countries can do, but, it seems we will start moving at a very fast pace now. I am not entirely certain governments will be able to keep up at all.