In the myths, the Amazons were all daughters of Ares. The identity of the mother varies but Ares conceived Hippolyta, Melanippe, Penthiselia and Antiope with Queen Otrera. The Amazons had a counterpart culture in the Gargarians; a tribe of all male warriors with whom they would meet once a year, to mate and conceive children. The males would be raised by the Gargarians and the females would be raised by the Amazons. This is how they maintained their numbers. There were stories of Amazons killing their male off spring but it's just as likely that complications happened in pregnancies just like in real life. Ergo, male rapist Amazons have no basis even in mythology either and is more of a reflection of an authors fears and anxiety of an all female warrior society.