I do agree with some of the points you are making. I think tznius has continued to be an increasing challenge for many, and the desire to have a head covering which is indistinguishable from natural hair is not a good thing.
I also agree that someone having been mattir fake looking wigs cannot be used to be prove that real looking wigs are muttar.
What I disagree with is the assertion that it is impossible to be mattir these.
First of all, many can tell the difference, so even if you hold that a real looking wig is assur, where do you draw the line? The previous shaitels also looked quite real. Every few years you hear new kol korehs that the shaitels are worse than previous ones (and it’s true, as they keep trying to make them look more real). But if you held the shaitels from 5 years ago were ok, or today’s non lace, then you are saying that very realistic is still not assur unless it’s 100% real looking. Well, these still aren’t. Many people say they can tell. So is the line 99%? 95%?
Secondly, as I have pointed out, some hold that even if a shaitel is 100% real looking, as long as her actual hair isn’t showing, it’s muttar. So no matter how much you say that these are more real looking, it won’t make it assur according to that opinion.