[akoboldfrying]

Did you just fall prey to the commonly groupthunk idea that things with downsides must also have no upside?

[procaryote]

Is that even a common idea?

[robocat]

I suspect commonly called black-and-white thinking. I think splitting describes what they mean although I've never heard that term used in my circles: https://en.wikipedia.org/wiki/Splitting_(psychology)