And in response, people will complain that they're being dismissed with "you're doing it wrong!" Because that happens with everything in programmer-land.
The easy response to someone feeling this way is to point them to the origin of DRY: The Pragmatic Programmer.
In the book, the authors explicitly call out that many people took the wrong idea from the original writing. They clarify that DRY is not about code, it's about what they call "knowledge", and that code is just one expression of it.
People can still disagree, but the original intent behind DRY is very well articulated.
And in response, people will complain that they're being dismissed with "you're doing it wrong!" Because that happens with everything in programmer-land.