Have you ever noticed that women who are so concerned about modesty are usually plain* and boring? It’s as if they had to invent a virtue because they didn’t have any others.
And just like how self-consciousness is a form of arrogance, spending that much time dressing yourself down places undue importance on your body, which is sorta the opposite of modesty anyway.
A bikini and a burka are both very much statements about sexuality.
*I say “plain,” not ugly, because I think beauty requires self awareness and creativity more than anything else, which makes it available to any woman.