Daas Yochid, first of all you are “paskening” yourself according to the loshen however no contemporary poisek would matter lace wigs, with perhaps the exception of those “Rabbis” who don’t have a problem with stocking-free legs with flipflops…
The fact is the wigs of decades ago were very noticable that hair hair was not נפש חיונית despite being made of human hair. The hair looked totally dead and everyone knew it wasn’t attached to the head. It actually looked lifeless! Today due to how the hair is preserved, the caps are made and wefts are sewn into the cap, the hairs don’t appear lifeless at all. But especially and particularly now because of the lace, it totally appears to be נפש חיונית and therefore it is posul, posul, posul. It is a shechted chazir, that’s what a lace shaitel is.
I’m not getting involved in the old machloikes. My direct ancestors were Rabbonim who paskened that wigs are not ussar and I am certainly not one to pasken that they are ussar. The women in my family wore wigs for generations and completely adhered to halacha, they were tzenuas, women I can look up to and try to emulate. I am only saying that because the Rabbis in previous decades, centuries and millennia were ok with the wigs of those times that doesn’t give women the right today to wear lace wigs of today.