So what if he married Jemima. Our religion allows us to marry a jewish or christian girl (and she doesn’t really have to convert to Islam!)
As for Jemima, her mother is a christian (catholic) and her father was only half jewish … and some of the other things you mentioned about her are after her divorce.
One of my uncles in Islamabad has a filipina wife (christian). Both her sons (grown ups now) are muslims but she still practises her own religion. That is absolutely fine with me… *har insan ko apna religion sahih lagta hai. She *is one of the nicest people you could ever wish to meet. If anything we appreciate the fact that they (husband and sons) did not force her to convert.