How do you know the end result is worse than disinformation? If the Russian disinformation allow Russia to destroy the freedom and democracy in Europe, and allow Russia to take over, that seems to me to much worse than limiting the publication of lies and slander.
Because whoever gets to determine what lies and slander are become your new dictators.
If the problem is Russian bots, there’s a much easier way to solve it: make Facebook and the platforms that allow them to spread financially liable.
You’re unironically arguing that giving up your freedom is a protection against losing your freedom.