But most muslims pick and choose what they want to follow and what part of religion they want to leave out. Atleast most muslims I come across don’t follow Islam 100%.
Yes it’s against Islam but not everyone follows the religion they were born into. And no it’s not insulting to religion, it just shows that those Khans aren’t good Muslims.
As far as the topic is concerned, I think any marriage can be successful and survive regardless of the race and religion. I know one couple in real life thats hindu-muslim and they ahve been married for 4 years now.