Identifying what the collateral damage would be, planning to minimize harm done, and identifying replacements for the functionality prior to replacement reads to me like an exact application of the principles recommended by Chesterton's fence rather than apparent ignorance of the concepts https://www.chesterton.org/taking-a-fence-down/:
> There exists in such a case a certain institution or law; let us say, for the sake of simplicity, a fence or gate erected across a road. The more modern type of reformer goes gaily up to it and says, “I don’t see the use of this; let us clear it away.” To which the more intelligent type of reformer will do well to answer: “If you don’t see the use of it, I certainly won’t let you clear it away. Go away and think. Then, when you can come back and tell me that you do see the use of it, I may allow you to destroy it.”
If you still see it so differently I'd like to better understand some more of the reasoning why.
I can't take any credit for theory as the above is just what Chesterton's Fence story is advising with nothing added.
I'm not particularly a DOGE fan myself but I've seen many folks like the above able to do great amounts of "cleanup" in organizations of 100k+ employees without much broken glass. Plenty who don't as well and create a mess of course... but those are not usually the ones who introduce themselves by way of being concerned about the effects and rate of change. People absolutely certain they know how something will go without doubt before even getting involved are usually the biggest problems, though they aren't wrong 100% of the time either.
Just as not every person who is hesitant to remove things is just a curmudgeon, freeloader, fake worker, lazy, or whatever else people like to characterize them as it's also true not every person who wants to remove cruft is ignorant, clueless, wreckless, royally screws things up, and so on. In both cases success is more tied with those focusing on the details, review, and planning of the execution rather than feelings on first thought.
> There exists in such a case a certain institution or law; let us say, for the sake of simplicity, a fence or gate erected across a road. The more modern type of reformer goes gaily up to it and says, “I don’t see the use of this; let us clear it away.” To which the more intelligent type of reformer will do well to answer: “If you don’t see the use of it, I certainly won’t let you clear it away. Go away and think. Then, when you can come back and tell me that you do see the use of it, I may allow you to destroy it.”
If you still see it so differently I'd like to better understand some more of the reasoning why.