Why did my post just disappear?
I will try again.
I think the solution to the tznius problem runs along these lines:
1. Instead of being shocked and disgusted, try reinforcing the alternate spritual beauty of tznius. (In other words, positive is better than negative.)
2. Don’t super focus on tznius as opposed to the many other ills of society. The ranting of some individuals against tznius might stem from a repressed yetzer hara coming out in that way. If the yetzer hara can’t get you one way, it gets you another way.