As I said, very weird hangup to have, definitely not motivated by other reasons.
Nor can anyone else, copyright is not generally 'destructible'. That's why it's a licence. The holder keeps the copyright, but licenses the work to the general public. (Assignments are another way to achieve something like this, provided the assignee then licenses the work.)
I assume what you're referring to is inalienable moral rights - hence the reference to Germany - but those are a feature of many (most?) of the world's legal systems. They are included in one of the revisions to the Berne Convention, if I recall correctly, which is an international treaty on intellectual property.
I understand you're sceptical, but the legal dimension of OSS does matter. Using copyrighted material without a licence would constitute a major business risk. I would appreciate it if you could kindly refrain from making ungenerous assumptions about the intentions of others.