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

No freedom is absolute.

Child pornography

Insurrection

What is the most memorable thing that happened in your college days?

Freedom of speech does not apply to:

Terroristic threats

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.

From an axiology/value theory point of view, how can one say that a diverse society is better than a uniform one, especially given the negative effects of diversity (racism, sectarian conflict, problems arising from extreme cultural relativism)?

Trade secrets

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.

Conspiracy

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Perjury

Fraud

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.

Can shaving hair by Veet in our vagina cause diseases?

Insider trading

Revealing classified information

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.

Who was the guy that had sex with the AIDS monkey?

And much, much more.

HIPAA violations

False advertising

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Revenge porn

Threats of violence