You mean Niqaab right??? Many Scholars of Islam say it's obligatory for a women to wear Niqaab that the face is also Awraah. Matter of fact that is the Major Opinion amoung the scholars.
So Regardless what the Kuffar say, their opinions don't have any say in Islam.
aselemu aleikum
major opinion amoung the scholars you say..brother watch out with what you say because its not true..
niqaab was never worn in the time of the prophet salalahu wa3alayhi weselem, nor does the quraan demand this from our sisters in islam.
especially since it causes for so much bad discussion and bad energy in todays world, i dont see what the benefit of it is..im a brother and i would die for my sisters righ to wear hijaab, but a burka simply is not obligatory on any muslim woman..and ALLAH knows best