My thoughs:
Caste system is a social hierarchical structure. You're not even equal to the King or high elites if you're the working class.
Britain is divided on social status....Same principal, so quit crying with false equivalences.
Narinder is Sikh...Her heritage is Sikhism. You jump up and down praising Sikhs, yet she sits here lecturing you all.
As for nationalism, more needs to be done to push nationalism forward in Britain.