And, until very recently, seemingly encouraged by the NHS?
> A blog published on 22 September by NHS England’s Genomics Education Programme said that marriage between first cousins had “various potential benefits,” while acknowledging that children of first cousins had an increased chance of being born with a genetic condition.
Hmm, being from the western US, I wasn't even aware that this is an Islam-adjacent topic in the UK.
I was thinking of inbred UK royalty jokes. (And, to some extent, our own Appalachia inbreeding stereotypes which overlap with UK-derived sub-populations.)