Subhead:At Melbourne’s so-called kids rally against Pauline Hanson, protesters demanded socialism and open borders but couldn’t say where either had worked, and a simple question about the ideology one young man fled was treated as an attack.# YouTube-embed:Cy8W-dncelA The young protesters at Melbourne’s rally against Pauline Hanson were keen to tell me what they believed and far less keen to explain it. One girl said she was there to get Hanson…