In his new role as director of the Greens’ think-tank, Max Chandler-Mather argues that the major political parties and parts of the media often limit policy debate – which, on issues such as housing and wealth inequality, shuts down real alternatives to the status quo. The former Greens MP and housing spokesperson speaks to political editor Tom McIlroy about returning to policies that improve the lives of Australians in material ways – and why he thinks political nihilism defines One Nation