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

False advertising

Threats of violence

No freedom is absolute.

This is a real question: Why do a lot of men/boys hate (yes, hate) women that voice their criteria in choosing a partner? Even when the criteria is sane and responsible. Besides it being, sadly, an effective mating strategy, why does it exist?

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.

Child pornography

HIPAA violations

Amazon Offers Fire TV Soundbar for Practically Free to Clear Out Stock Before Prime Day - Gizmodo

Perjury

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.

Can I fix a fridge leak myself, or should I call a pro?

Freedom of speech does not apply to:

Trade secrets

Conspiracy

Scientists Uncover Giant Spiders That Once Terrorized Jurassic Earth - The Daily Galaxy

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.

Insider trading

And much, much more.

2 Popular Dividend Stocks I Wouldn't Touch With A 10-Foot Pole - Seeking Alpha

Revenge porn

Insurrection

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.

Musk rails against Trump tax bill, calling it ‘a disgusting abomination’ - The Washington Post

Fraud

Revealing classified information