Are you seriously suggesting that women are forced into hijabs but not into short skirts and high heels
The hijab came about as a religious command to women to protect men from the effects on them of seeing a woman's hair. In the West we also used to cover our hair, but we don't tend to any more.
Prostitutes are told what to wear, because of this same sexist idea, that women who don't cover themselves appropriately are fair game for predatory men as they are immodest. Pimps and traffickers order the women to wear skimpy clothes purely in order to tempt men.
They are two sides of the same coin.
If you want to make the construction that high heels are also a sexist symbol of women's oppression, I accept that they can be seen that way, so no argument there. But this isn't what the thread is about, is it? No one is saying we should celebrate the high heel here.
And short skirts are far more comfortable in many ways than other clothing and many women wear them primarily because they like to be less constricted by their clothing. So not the same thing.
As people have said, I would be fully in favour of Wear Whatever You Like Day on which you would obviously be free to wear the hijab if you wanted to.