Could someone link to some actually helpful writeups on eIDAS? The linked article doesn't mention what eIDAS is about, only vague but strongly worded language about it having to be stopped, with no justifications or even what it is.

The comments too are less helpful than usual. A lot FUD and anti-EU sentiment (which may or may not be warranted, but there's very little objective reasoning going on).

Addendum: yes, people could look it up, but given the strong call to action ("last chance to fix eIDAS!"), I would suggest that the onus to provide clear information is on the authors. You can barely get people to care about privacy at all, let alone when so little information is provided.