WATCH: Tucker Carlson discusses how Elon Musk is attempting to save free speech by trying to take over Twitter

"Free speech on Twitter matters," Carlson said Thursday night. "Last month, Elon Musk gave the impression that he planned to do something about it... he bought 10 percent of the company. Now today, Musk has just put in an offer to buy 100 percent of Twitter at $54 a share and take the company private."

Carlson explained that Twitter "...is the single most important forum for speech possibly in the world. Not because it's the biggest, but because it's where elite opinion is incubated."

"It's not an overstatement to say it could be the single most important development for free speech in the modern history of the United States," Carlson remarked. "As Musk put it, Twitter's potential is to be 'the platform for free speech around the globe.' Twitter will neither 'thrive nor serve the societal imperative in its current form. Twitter needs to be transformed as a private company.'"

From a business perspective, Carlson said it's a "very tempting offer" for the company. Musk essentially gave an ultimatum to Twitter's board of directors and said if they declined his offer, he would need to reconsider his position as a shareholder.

"That means if Twitter's board rejects Elon Musk's offer, they will need to explain why to their shareholders. They turned down a deal that would make the shareholders much richer. So, by doing this, Elon Musk is putting everything on the line. He knows how important Twitter is to the people who run our system and run the global system. For them, censorship and propaganda are not a feature of their rule. Their rule depends on censorship and propaganda. If you are offering policies that really benefit nobody but yourself, you have to lie about them, and you must prevent anyone from complaining about it. So, censorship and propaganda are at the very heart of neoliberalism and Elon Musk is challenging all of that directly," the Fox News host explained.

"He's the richest man in the world. He's not trying to make more money. He's not donating to a foreign charity or creating a tax shelter for himself, at least in this case. He's using his money to allow at least potentially Americans to speak freely," Carlson said. "Is it distressing that our own democratic system isn't working that you would need some rich guy to swoop in deus ex machina to save free speech in United States? Of course, it is. Is it sad that we're all desperate for Elon Musk to save us? Yes, it is. But who else is going to save us? Nobody at this point."