This isn't about wages. This is about maintaining job security. Any kind of automation which promises less labor and/or less time is interpreted as "we dont need as many people as we did before." This is how a union person views these things - job killers.
If you actually read the pages that you linked, you will see nothing of the sort you describe. One page is literally talking about wages only. The other says that unions want companies to train employees so that they are prepared for automation. Anyway, no use discussing here, because apparently facts don't matter.
ah yes, you are right, i didn't think about that. i have to admit that i can't say how european unions would react here, but i think any negotiation on the issue would be based on the idea that automation is fine as long as it does not cost any jobs, but instead the company makes sure that all employees get reassigned and trained to do alternative work. using automation to increase output instead of producing the same output with less people.
at least in germany unions are also favoring reduction of work hours, which is another way workers can benefit from automation without losing their jobs.
