If freedom of speech is absolute, how come it's not applied for private spaces and for the Internet?

Insurrection

Perjury

And much, much more.

Why do atheists love to preach against Abrahamic religions and mock God? Even if they do not fear the eternal fire of hell, pious Muslims will certainly not leave them alone and will take brutal revenge until they surrender and repent of their sins.

Trade secrets

Child pornography

Threats of violence

Is Jesus God almighty?

Terroristic threats

You have freedom to travel. If I loan you my car, I can tell you not to take it out of town, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Revenge porn

My cantankerous beagle is very badly behaved at the dog park and always starts barking at the other dogs. Would pepper spray be an effective method to correct his inappropriate behavior?

HIPAA violations

Fraud

False advertising

After a Century of Searching, the Source of Mysterious Space Rays May Be Revealed - The Daily Galaxy

Freedom of speech does not apply to:

You have freedom of speech. If I loan you my computer, I can tell you not to use it for certain things, because it’s mine, you have no right to use it, and if I give you permission to use it I can tell you what you can and can’t do with it.

Revealing classified information

Have you ever really seen aliens or UFOs by yourself? Can you share your experience?

No freedom is absolute.

Conspiracy

That’s what it is. You have no right to use other people’s stuff. If people let you use their stuff, they can tell you how you can use it, and they can tell you to stop using it any time they want.

If we do not know the name of the father of a child, e.g. a foundling, an illegitimate, etc., then to whom should the bin or the binti of the child's name be applied?

Insider trading

If you’re wondering why free speech doesn’t apply to the internet, it’s because you have no right to use other people’s stuff for free.