I love the St. Gemma quote.
The "big picture" I see, in regards to women dressed immodestly, is that for men it's enslaving. The enslavement is to their own lust, but women sort of control the "stuff" that men lust after. So, in this way, men become enslaved to women. It's like the relationship between a drug addict and a drug dealer. Both are enslaved to their passions, but one is clearly dominant in the relationship.
That I guess is supposed to be revolutionary, because it transfers power from men and gives it to women, thereby undermining "the patriarchy." And this is rationalized as good/a necessary evil, because equality is supposed to be just.
So, I think that's how the left/jews/cultural marxists/moderns/feminists whatever rationalize it, but it seems like it's just an attack on the natural order. And, if you wear a bikini to the beach, you get to be a part of that war on the natural order, wittingly or not

And if you wear modest clothing, you're sort of defending the natural order, because you aren't trying to turn men into "slaves."
It's stupid simple, but I think that's how it works!