firstly, about Krishna : He had legally married Rukmini, Satyabhama ... he did not take sex slaves like Muhammed
Yes, he loved Radha and there love was not requited, but still they are adored as a symbol of love!
The so called story of him having 16000 wives is misinterpreted ... they were ladies who dedicated their lives to him like nins , no physical marriage ... so please dont abuse without knowing facts