When one is dictating dress codes to others, however, one is required to prove one’s position from a halachic source.
The Orchos Tzaddikim didn’t hold back from saying how women shouldn’t dress. I am still amazed that you think people should or should not be “dictated to” based on whether you choose to call it halachic or hashkafic.
And the answer to your “pircha” is that the kal vachomer is based on the reality that men do notice women.