It seems that one need look no further than Edward VIII and Mrs. Simpson to see that the Brisish Royal family has not worked well with American Divorcees.
There is now a well defined history here that someone whould have investugated. The self proclaimed Irish opinion writer in the NY Times does a reasonable job but she misses the point. Namely, despited the apparent need for Royalty, genetics proves that its elimination would perchance eliminate these occurances.