The American Family Association is attempting to boycott the US Postal Service, over a stamp honouring gay rights hero Harvey Milk.

Milk, the first openly gay politician to be elected in America, was assassinated in November 1978.

A stamp in his honour was unveiled last month after years of campaigining, and was launched by the Postal Service at a White House ceremony last week.

Anti-gay group the American Family Association told its members today: “Honoring predator Harvey Milk on a U.S. postage stamp is disturbing to say the least. He is the last person we should be featuring on a stamp.

“Unfortunately, the deed is done. The United States Postal Service honored a child predator at the whim of a drag queen.

“Furthermore, the radical homosexual lobby will undoubtedly encourage businesses to use these stamps – all in the name of inclusiveness, political correctness and diversity. This is not diversity; this is perversity.”

The group asks members: “Refuse to accept mail at your home or business if it is postmarked with the Harvey Milk stamp. Simply write ‘Return to Sender’ on the envelope and tell your postman you won’t accept it.

“Refuse to accept the Harvey Milk stamp if offered by your local post office. Instead, ask for a stamp of the United States flag.”