Benignuman,
I’m probably misunderstanding you again, so I’ll tell you what it seems to me that you’re saying, and you’ll please correct me.
You seem to be saying that the halachos of tznius follow the standard of the day, and therefore, it is muttar for women to dress the way we find most people in society dressing. According to this, it’s okay to wear shorts, and worse, which I will not detail.
I doubt you mean this, so please explain.