australia 's ` tiny hearts ' approach to stopping the boats should be copied by britain .
controversial columnist katie hopkins wrote that tony abbott 's policy was effective and like ` an aussie version of sharia stoning '
` australians are like british but with balls of steel , can-do brains , tiny hearts and whacking great gunships '
she calls those on board migrant boats ` cockroaches built to survive a nuclear bomb '
it came as more than 900 people were feared drowned on a sunken fishing boat headed for italy .