Who's going out with a muggle? Did I miss something?<<
One of the Griffendore's is half muggle - he mentions that his dad was very surprised to find out his wife was a witch.
Haggrad is half giant.
Ron's brother is marrying Fleur Delacour who is one fourth Veela.
But throwing in inter-racial dating had to be a joke unless the poster was trying to make Freep look bad - unlikely since he's been here since '99.
That was Seamus Finnegan. Both of Hermione's and Dean Thomas' parents are muggles.
A lot of them are half. Hermoine's parents are muggles (dentists)