Building on the same discussion, would you marry someone who:
Could be a carrier for which a genetic marker hasn’t been discovered yet?
Has relatives who are dumb?
Has a 100% chance of losing hair with age?
Has a family history of Alzheimers?
Has a family history of being poor?
Wears fashionable clothing, which has a 25% chance of going against the rabbonim?
May have once done something they didn’t tell you about?