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:

HIPAA violations

Insurrection

Why am I sweating so much at night even though my room is really cold?

Trade secrets

Conspiracy

Revenge porn

Do Indian guys like African girls?

Fraud

Threats of violence

Terroristic threats

What is the reasoning behind conspiracy theorists claiming that there were multiple shooters involved in the JFK assassination?

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.

And much, much more.

Insider trading

Do opposites attract? How often do you see weird couples like a guy/girl dating someone who is boring with no sense of humor ?

Perjury

No freedom is absolute.

False advertising

Why does my sister want to have sex with me? What should I do?

Child pornography

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.

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.

What is the best way to get my wife to become a hotwife?

Revealing classified information

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.