They weren’t kicked out - it was their choice. They probably didn’t want to be pressured into becoming Muslim.
I think it was their ‘choice’ because SHE saw how the British population was and would be turning against them.
She married into a ‘game’ that she didn’t want to play. She thought she should be the Big Fish, and when she wasn’t, she reneged on the deal. He’s pussy whipped, so he went along.