FB is a user supplied content platform, consisting of user supplied drivel and external links, much as is /.
There is no re-publishing, it is user supplied content or public links that are being shared/blocked. The sites being shared that are complaining are not paupers slaving for the community being abused by big tech.
There is no blocking of "news", everyone can still go direct to whatever "news" source they prefer to consume, it is the sharing of third party content that is currently being prevented in some cases. WTF is the definition of news anyway?
To carry it further, what would be a reasonable line between what FB does vs places like /., ISPs, government media pages, a sole trader website, an email provider etc etc - does this mean anyone who provides a vehicle to share an official news article needs to pay Murdoch et al? What is the difference between "news" and other paid for content?
To limit what people can share due to legislative enforced costs changes things. If I share some loony conspiracy story, no one can share an official news link that may de-bunk that story on FB. Or if there is some agreement made between FB and the "News" consortium, then there is a costing difference between sharing stories from some sources compared to other sources that will also change what content is displayed.
Effectively an indirect tax on some organisations to support other organisations based on some very rubbery concepts, which I imagine will be the source of some messy legal processes for years to come.
Time to open the popcorn..