The clothing you choose to wear says a lot about who you are. We should be teaching our young ladies to reject the worldview that they only matter if they dress sexy.
The Greek word you’ve identified as Modesty isn’t even translated as the word modesty in 1 Timothy 2:9. In the translation you quoted its translated as propriety, the KJV translates it as shamefacedness. Strongs thesaurus says the word means “bashfulness, that is, (towards men), modesty or (towards God) awe: — reverence, shamefacedness” the word translated as modestly in the translation you quoted and as modest in the KJV is the Greek word kosmios. Strongs thesaurus says this means “orderly, that is, decorous: — of good behaviour, modest.”
Given the actual definitions of the words used in Greek the scripture is instructing women to dress in church with regard to modesty towards men, reverence towards God, and in a way that reflects good behavior.
Just because it’s popular to say that women should dress however they want doesn’t mean it’s a biblical view. I agree that our sons need to be raised under a different narrative to teach them to control the drives and impulses inherent to maleness. However, this does not mean that we should teach our daughters that it doesn’t matter how they dress.