>I know this is a very European attitude, and always gets Americans worked up, but to me as a Dutch / French person, it seems obvious that free speech is not absolute. Just like the right to bear arms does not mean that I can own any type of military weapon.
As an American, I know that even in the US, free speech is not absolute, nor has it ever been.
And all the things you mention are, in context, crimes here in the US as well.
One of the big differences in the US (not sure about France/The Netherlands), but in the UK it's much easier to prove libel/defamation than it is here.
I actually could say you robbed me yesterday, but if I didn't file a police report alleging that, it would be difficult for you to successfully sue me over it. Because you would have to prove that I knowingly did so and not only intended to cause injury, I actually did cause injury.
However, if I filed a false police report, I could be prosecuted for that -- and if you suffered some injury because I did (arrest/imprisonment, loss of job, etc.), you could likely win a libel/defamation lawsuit.
If there are people who tell you otherwise, they're either ignorant/uninformed or just lying.