"You can affect space without directly affecting any object or person inside it. Heck, there are characters that can only directly affect the space itself. You can distort the space around a target that prevents you from leaving a certain area without hurting them or doing anything with them unless they enter that distorted space."
This is obvious. You have just forgotten the fact that the GRC is an attack directed at an opponent and will distort the space he occupy.
"So simply saying that it distorts space is not enough. What does this distortion do?"
This distortion deforms the space, you can see in the scan above. Imagine paper, steel and a character with planetary resistance, all being affected in the same way. Yes, this is
durability Negation .
"Conventional durability does not matter, because the matter is secondary in relation to space and time. For example, it's as easy to distort a material object by
distorting a portion of the space in which it is located.", "The effect on the object will be the same, whether it's a sheet of titanium or a piece of cardboard."
"Will it teleport you to different location?"
It's a distortion in space, not a wormhole.
"We have characters who can literally open up holes in space-time by screaming. Does that scream ignore durability?"
The scream does not ignore, open a fissure in space-time, yes.
And please, avoid citing other franchises here again. Unless they are from the same author or happen in the same universe as Bleach, believe that only then will it have some credibility.