YEs you can, and you should. People have the absolute right to know the HALACHIC (not minhag of some, not chumros of some)sources when someone is trying to tell them they are doing something the wrong way. Otherwise, the person who is giving them mussar should stay silent.
And what chumros are you reffering to? The basic definition of what tznius means? Tznius means basheden, it means having a sense of busha, it means hidden.
So exactly how does a long founcy wig fit in with the definition of tznuius? How does tight fitting clothing fit in with that definition?
There is nothing to explain if you cannot understand the basic concept of what tznius is all about. Once you understand that then we can talk about different halachos, shittos and minhugim that different and their sources.
BTW, not only does it NOT say in the Torah that a man cannot have more than one wife …
Exactly that is my point. Driving a car on Shabbos, having more than one wife, etc. these are all things that Rabbonim later enacted to keep klal Yisroel on track. So are the halachos regarding tzniusdige dressing that are current in our times enacted by Gedolim. Who are your Gedolim? That’s the bottom line. If I will quote you Rabbi Falk, whos halachas are accepted worlwide by frum communities you may say that I have a different shitta than him. So what’s the point in discussing sources? Let’s not do that.
Let’s go to the simple definition of what a tznua is.
A long, flouncy shaitel doesn’t attract negative attention?
Skin tight clothing doesn’t reveal the shape of the ,/em>
body?
Very bright colors doesn’t attract attention?
Very shiny mettalic accesories or shoes don’t attract attention?
If you answer in the negative here, then whom are you kidding?
Hashem allowed MANY things that we no longer do today because of the takanos of our Gedolim, who were invested with the halachic power to do so. But if we accept that the Torah is perfect as it came from Hashem, it does leave way to say that His intention was a little different from theirs, but they obviously saw a need to enact gedarim to preserve His intent.
Your contradicting yourself here. On one hand you are saying that “it does leave way to say that His intention was a little different from theirs” and on the other hand you are saying that “they obviously say a need to enact gedorim to preserve His intent”.