One is for medical reasons and by choice, the other is for religious reasons and "by choice".

Totally different beasts. Muslim women covering their whole body but their eyes is way more difficult to identify for law enforcement since they have only the eyes as one data point to uncover the identity while for Asian folks who cover their mouth - not their face, huge difference -, you'd still get the eyes - provided that they are not covered by sunglasses -, the hair - provided that they are not wearing ridiculous hat -, body shape and probably gait as data points to work on in their search.

All in all, it's still a better situation for the latter than the former when it comes to law enforcement.

Not quite so different. There are huge discussions about the headscarf in Europe, which doesn't cover the whole face like a Burkha.

That's because it isn't the act of covering your face that people find offensive, it's the reason behind it.

Asia is a very big place.

Stalin was as Asian.