"Duck Dynasty" patriarch Phil Robertson spoke out against the "rise of radical Islam" in a controversial interview this week on "The Sean Hannity Show."

The 68-year-old echoed previous statements that compared Shintoists and Muslims to Nazis, and said the rejection of Jesus contributed to the Charlie Hebdo attack last week. 

"The five ideologies of the 20th century, two of them are still vibrant," Robertson began. "The one we're currently facing - the Islamists, the terrorists - and this political correct-ism. Atheism, basically. 

"Look, no Jesus with Hitler, with the Nazis," he continued. "They wanted to dominate the world, they were famous for murder. The Shintoists came along, no Jesus there, Sean. They were famous for murder. They wanted to conquer the world."

Robertson went on to call radical Islam "an ideology under the guise of a religion," and cited the proposed Muslim call to worship at Duke University as another example of the absence of Christ in society. 

"These materialists, these hedonists, these atheists, agnostics... It just goes on," the reality star said.

"Idealism, determinism... There's always an -ism or a theory that people expound on, Sean, when there is no Jesus. I'm sticking with Jesus myself."

The Fox News host stated that America was founded on Judeo-Christian principles, and questioned why those values have fallen out of favour as of late. 

"When you have no Jesus, your morality disappears, and the third thing the goes is your freedom," Robertson answered. "We've already lost Jesus as a nation... We've walled him out of our schools, we've walled him out of our government, we've just walled him off.

"That's why we're having trouble labeling who we're fighting over there, because there's no moral compass. There's no godliness here anymore."

The Duck Commander leader urged viewers to love God and love their neighbour, prompting Hannity to encourage Robertson to start a ministry. 

"I may be a little ragged for TV evangelism," Robertson laughed.