It's cultural.

Pakistani girls are securely guarded everywhere. They never go anywhere without male guardianship to ensure no sexual attack. If they are EVER found walking alone, it's assumed she's deliberately chosen to because she knows what will happen... and wants it.

Which is why in the UK they always say the british girls they abduct "clearly want it." These men come from a world where if girls walk alone, it's broadcasting permission to all men in the area that she wants it.

And in western countries, young white girls are everywhere, in form-fitting clothes, out walking alone or without male guardians.

As far as Pakistani men are concerned, all British schoolgirls WANT IT. So as a dutiful Pakistani man in this brave new world... why not? And they must ensure they treat the girls as scum, because what girl in her right mind would CHOSE this? Yet here they both are, and the girl's made her decision... so pour the alcohol, supply the drugs, and treat her the way she wants.

And the western liberal knows this, and considers it teething problems. "It's a rough transition, but we will all get through it, and once they are all accustomed, we will all benefit from their cultural richness!"