Earlier quoted context omitted.
I've been trying really hard to replace all my usage of "you're wrong" with "yes and". Another good one I'm trying recently is: "You're right to think that given the information you know, and here's some more information you should consider." Oh and: "That's a great hypothesis, here's another one."
People aren't idiots. If you're just replacing "you're wrong" with doublespeak people are gonna figure it out real quick. There is no substitute for engaging in Quality(TM) communication with people even if the end result is disagreement.
So to me, that's the reason for change in language. First I want to express that I'm listening to what you said, I'm considering it, and I think it's really good, but there are certain aspects that I'm unsure about, and now I'd like them to consider those.