The failure of the Left in this country

Deep in my research into the Zapatistas....I noticed this from John Nicholson, do think we in the UK need to look to Latin America, the left have obviously done somthing right there and of course ecosocialism is strongest in Latin America, are there lessons that can be drawn?The DPS in Australia and LINKS do this explicitly...any way on to John's thoughts.Excellent that Caroline Lucas is