So guide me through this thought process:

You are saying, that most users don't check install size of their games. Which I am not convinced of, but might even be true. Lets assume this to be true for the moment. How does this contradict, what I stated? How does users being uninformed or unaware of technical details make it so that suddenly cramming the user's disk is "caring" instead of "not caring"? To me this does not compute. Users will simply have a problem later, when their TBs of disk space have been filled with multiple such disk space wasters. Wasting this much space is user-hostile.

Next you are talking about _content_, which most likely doesn't factor in that much at all. Most of that stuff is high resolution textures, not content. It's not like people are getting significantly more content for bigger games. It is graphics craze, that many people don't even need. I am still running around with 2 full-HD screens, and I don't give a damn about 4k resolution textures. I suspect that a big number of users doesn't have the hardware to run modern games fluently at 4k.