in order to de-ameritmuttize my speach patterns i will only be consuming australian media from now on

in order to de-amerimutt my speach patterns i will only be consuming australian media from now on

Is it common for native born Australians to speak with a slight South African accent especially if they consume too many Special Task Force (SAPS)
https://www.youtube.com/watch?v=rUlk7XGqFCM) and Rhodesia content. And especially if they are on the autism spectrum?