It does exist but like everything else its subject to humans being bad bellends.
Freedom of speech and expression is a basic human adult right but it needs to be tempered with a dollop of decency too.
Charlie Hebdo continually prodded Muslims with their cartoons of the Prophet Mohammad. This was despite it obviously generating deep feeling amongst many Muslims, it was only a matter of time before one of their extremist bells decided to take action. Was it justified? Of course not. But then it wasn't wise to draw nasty stuff about a deity which its followers are deeply against you even depicting their image, never mind sullying it.
The free speech thing is usually a shield used by absolute bellends to offend someone else with their small minded bigoted views. Take for instance anyone ever who called themselves a libertarian.
Those often shouting the loudest with their free speech stuff are the most hateful.
There's times and places when to say stuff and times and places when not to. You learn these basic qualities as you grow up usually with the aid of a smacked arse off a parent or a punch in the face off someone who offended.
Its fine to disagree or be contrary, but when you're invoking people wanting to actually kill you then you need to review what you're saying, or how you're saying it as you're going about it all wrong.
No doubt this free speech thing will be used as a vehicle by those with the most hateful views to hate some more on others.
When really its just that dollop of decency that's needed more than the words.
You've got free speech. Every single one of you reading this. Just use it wisely and as a force of good, for provoking deeper thought and understanding.
Not for hurting people's feelings because of your small minded views.