While I am sure that you have the stats on how many views the videos attract, I will offer some suggestions.
I watch a lot of videos and also love to watch interviews and watch news stories. However, when I visit Slashdot, it is for the summaries and comments; I am not in a video-viewing mood. It is often at the beginning or end of my day when I want my quiet time; or when I am taking a break and want to minimize sensory load.
I believe that there is a place for Slashdot Videos - and that place is YouTube or an alternative.
Currently, your videos appeal to less than 10% of Slashdot visitors. There is a much larger market available through other streaming services. The difficulty will be in driving traffic to Slashdot from sites like YouTube. Perhaps a weekly news wrap-up (30-60 minutes) video directing people to the relevant articles for more detail will drive traffic.
I can't exchange BitCoin for a real house either.
Without copyright you couldn't monetise your knowledge
There are many individuals and organizations that place their work in the public domain, use a lesser form of copyright (CC, GPL), or otherwise give their rights away. They monetise their knowledge by being proficient or pioneering. Then there are people who want to control the knowledge but fail to monetise it.
... and so wouldn't publish publicly.
Money is not the sole reason for publishing. I would also say that it isn't even a top reason for publishing. Recognition, fame, sharing, sense of achievement, and sense of community are all great reasons why one would publish. I publish comments without payment. I publish blogs without advertising revenue. I publish source code without a licencing fee. Why? Because I value the betterment of society higher than having the freedom to have someone else water my lawn.
Why don't they flee to other Muslim countries?
Because many of those countries have the same regimes that they are fleeing from.
The second hit is a piece in the Wall Street Journal.
The piece mentions nothing of immigrants, Muslims, or anyone else filing a petition or calling for a ban.
It does mention that Christian Conservatives want to exclude all immigrants from festivities and Bavaria in general.
Having read ALL the first 20 links, it appears that the petition to ban Oktoberfest was submitted by the same Christian Conservatives and that all names and signatures were fraudulent. But I guess since these fraudsters aren't brown, we can now pretend the petition never happened.
Nearly every complex solution to a programming problem that I have looked at carefully has turned out to be wrong. -- Brent Welch