That's only because we were sending plastics to them to 'reprocess', and when those countries banned it, we were dumping it there illegally:
https://www.theguardian.com/world/2019/may/29/malaysia-to-se...
https://www.theguardian.com/world/2019/may/29/malaysia-to-se...
That article is about the countries raising their standards for the sorted material they accept, not about the typical journey that Australian waste takes. Just think about what a non existent amount of material 100 tonnes is for a country of 25 million people. Millions of tons of waste a year just in NSW: https://www.smh.com.au/national/nsw/what-sydney-is-really-th...