Taking someone else's experimental data and passing it for your own is objectively wrong. I would not argue with that. But what about when you are writing a review paper about some topic that doesn't claim to have any new experimental data? Is taking someone else's review on this matter and rephrasing it count as plagiarism? What if you take several similar reviews and stitch them together..?
What if you take someone's review and publish it as your own in another language... having added and removed some parts and after a little bit of restructuring to your liking? It would be rephrased simply due to the fact that it would be translated and I don't see any possibility of the writers of the original paper even noticing it since they don't know my language.
Would you consider that plagiarism?