A former radical Islamist said that Islamic terrorists like the ones who launched attacks in Paris on Friday are "ideologically driven to bring about a theocracy in the world."

British activist, politician and author Maajid Nawaz said there's "a fully blown, global jihadist insurgency." 

"It's the new zeitgeist for angry young Muslims who want to vent their frustration, and they're joining this new bandwagon," the former member of the Islamist movement Hizb ut-Tahrir said.

He said that unfortunately, the problem has taken root among European Muslims, like UK citizen "Jihadi John," who turn against their country despite being given more rights and opportunities there than the places their families emigrated from.

Nawaz said radical Islam must be combated by a "long-term," "community-based" strategy of challenging the ideology, and not labeling people who do so "Islamophobes."

At the same time, the "vast majority of Muslims who don't subscribe to this form of terror" should not be stigmatized.

Nawaz said he turned against radical Islam when he saw it "up close" as a political prisoner in Egypt.

He compared it to a jihadist version of George Orwell's anti-totalitarian novel, "Animal Farm."

"My God," Nawaz thought, "if these guys ever come to power and declare their caliphate, this is going to be hell on earth ... Of course, now we see it for what it is."

Watch the full interview on "Fox and Friends" above.

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