A certain group of people
What exactly do you mean by that?
From my experience, it’s “normal” people who use LR. Most of them use LR because they don’t know other software.
E.g. if you want to make a license or any kind of certificate in photography, it’s LR that you have to know.
I like Open Source software, but politically, I am not in the left or any kind of “alternative” spectrum. I used to be left but I have grown older.
As I am writing this, I am actually downloading LR again. I am too curious.