WIY, maybe you are not judging those who are sinning but you are certainly judging those who are concerned about chillul Hashem!
Don’t you think we should not be focused only on not upsetting people and start thinking about not upsetting the Aibishter? How do you think Hashem “feels” (no He doesn’t feel) when He sees His daughters in skimpy clothing, their knees and thighs getting uncovered with every slight movement, tight clothing hugging their bodies, looking like the cheap nochrim?
Do you think He has nachas from that?
I don’t remember where I heard this but if one is not sure whether their action is a mitzvah or aveirah they should look at the outcome of their action.
If there will be no change because people will feel judged that they are judging not tzniusdige women and won’t take action because of that then how do you think the next generation of Yiddishe girls will look like if their mothers don’t impart this very vital mitzvah of tznius?
Tznius is the FOUNDATION of a holy nation.