They try to remove it.
As far as I know it is agreed internationally not to deposit any waste in Antarctica
No.
All -- 100% -- of the people in Antarctica, are people...in Antarctica.
Scientists (the only people who live in Antarctica) try to leave it as they found it, so, all garbage is removed. Tourist ships have strict rules about leaving waste and doing any damage.
you cannot dump toxic waste on it
The process of decomposition requires heat and humidity. Antarctica is the coldest continent on earth with a humidity average of about five percent. These facts combine to preserve waste and prevent its decomposition.
There is no native or permanent population on Antarctica, and therefore, no 'people' who came from Antarctica.
People are doing research in Antarctica.
people from Antarctica are called Escimos.
hundred of thousands each year
Generally, research stations follow the guideline -- clean up after yourself. All waste produced is either burned, or is bagged and returned to the country that supports the research station. As a result, there is no waste to speak of in Antarctica.
All waste which is not burned on the continent is packed up and shipped back to the country that supports the research station where the rubbish is generated.