Why don't you stand up for the rights of Klu Klux Klan members to wear white cloaks in public? The cloak shares many parallels with the niqab, including anti-semitism and prejudice against the LGBT community and yet I doubt if someone wearing a KKK cloak would be able to ride a public bus or use a public library - and they shouldn't be able to because they represent a belief system that condones bigotry and other prejudices that make people feel unsafe. Similarly, the niqab is most common in countries that persecute the LGBT community, in many cases with the death penalty and condones the death penalty for apostasy and blasphemy- the niqab isn't independent of a regressive belief system, it is a symbol of those beliefs.