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

Insider trading

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.

Trade secrets

What are your darkest taboo confessions?

Child pornography

No freedom is absolute.

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.

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Insurrection

Threats of violence

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.

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Freedom of speech does not apply to:

Revenge porn

Fraud

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Perjury

False advertising

Conspiracy

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Terroristic threats

Revealing classified information

HIPAA violations

Why don't men find fat women attractive?

And much, much more.

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.