More than anything, I'm trying to sort out my thoughts on the matter, not really inflict them on anybody. But you're welcome to discuss, as that may help the sorting process.
From what I can tell, the exterior walls of the BIP are put in place by our existence as humans. As has been said before in other treatises, our perceptions are limited by the relatively narrow ranges of our physical senses, and by the fact that our brains can only process so much information at a given time. Even when we try to expand our sensory ranges by building and using mechanical devices, it's very difficult for us to observe both those expanded ranges and our "natural" ranges - we have to focus our attention on what's under the microscope and can't necessarily notice the fire that just caught in the far corner of the laboratory. This is why we can never fully escape the Black Iron Prison - we either don't have the sensory perception, or we don't have the mental processing power, and if we try to expand both at once, we end up frying our brains with data overload. None can look upon the face of God and live.
However, the BIP is chock full of interior walls, and we can smash those to our heart's content because we're the ones who put them there, or who allowed them to be put there (which is almost the same thing). Smashing those walls doesn't change the fact that we're in prison, but it gives us a little more wiggle room.
One of the troubles in wall-smashing, though, is that many of us knock down a wall, then take those bricks and use them to build a new and different wall. I actually had that revelation back in high school, but only in a very specific sense - I was complaining about how so many guitarists wanted to sound like Jimi Hendrix because "he was so innovative". That idea just totally boggled my mind. They admired Hendrix for being innovative, so they were going to very diligently copy everything he had already done, and think they were somehow better for it. Hendrix had smashed a wall, and these kids were very meticulously picking up the bricks and building a new one - but it was okay because this was a Hendrix wall and therefore cooler than the other walls out there!
On the other hand, is it bad to rebuild walls in new and different places? If you knock down too many walls without rebuilding at least one or two somewhere else, do you risk collapsing the ceiling on yourself and going completely mad? (If you want to argue whether or not going mad is a bad thing, let's do that elsewhere.) And is it somehow less offensive to live with walls that you have built, since you chose to have them there and you will probably remain aware of their existence? I tend to think it is - if a girl who grows up reaping all the benefits of gender equality who *chooses* to be a stay-at-home mom when she grows up is IMO better off than a girl who grew up never knowing that she didn't have to do that if she didn't want to.