Not from the open web, but excluded from participating in parts of the web economy and content.

I am under the impression that the big content owners have renewed faith in winning the battles on the two fronts that matter to them: enforcing end-to-end controlled digital channels, from service to the consumer's own computer (DRM), and preventing the alternative of piracy.

They have learned that piracy cannot effectively be prevented by technical means, but that no longer matters if you can scare the vast majority of consumers with lawsuits and out of court settlements. This is now happening in a lot of economically strong countries.

I think this poses a real threat to the open web itself.

First we have DRM video and soon after music.

Next the game industry wants to protect their source code. And app developers.

After that come images. A lot of companies would love to display their pictures but keep them from being "stolen".

And, at last, normal text will also be DRM'd and the open web is history.