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

Freedom of speech does not apply to:

Fraud

False advertising

What do gang stalkers want?

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.

Insurrection

Threats of violence

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Revealing classified information

Insider trading

Child pornography

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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.

Perjury

Conspiracy

Can you share a picture of your favorite outfit and explain why you love it?

Terroristic threats

And much, much more.

No freedom is absolute.

Have you been with a stranger yet?

Trade secrets

HIPAA violations

Revenge porn

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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.

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.