I’ve been appreciating the term “high-control group” as an alternative, with reference to the BITE [1] model of thought control. People trapped in the group housing situation easily check all of those boxes.
[1] https://freedomofmind.com/cult-mind-control/bite-model-pdf-download/ (note: Steven Hassan has done good work, but can be a little too profit-seeking himself imho)
I’ve thought about this angle a lot too. As an apostate Christian and practicing Pastafarian, I keenly feel the difference between high-control and low-control religious groups, and the control bothers me much more than the religiosity. BITE is still my gold standard to this day for understanding whether somebody is being coerced/controlled.
Also, if you think cultists get pissed at their beliefs being called a “cult”, watch how much more they flip out at being called a “high-control group”. It’s a very good disarming technique.