Edited sentence: Indeed the Irish who came here appear to have struggled longer than those who settled almost anywhere else.It should be noted, however, that sectarian violence in Scotland preceded the formation of both clubs.Scotland was no exception to this rule.The residue of 'sectarianism' in modern Scotland came from this.They are part of a historic exodus from Ireland ' a diaspora ' that met hostility and racism wherever they settled in the English-speaking world.They have never been able to systematically discriminate against their Protestant neighbours, though spurious claims are often cited.Though Orange/Green are held up as two sides of the same sectarian currency, Catholics make up only 16% of the Scottish population, largely descended from poor Irish immigrants, and still largely working-class.Though Protestant migration made up a large percentage of the diaspora, it was the Catholic Irish that were racially categorised as different ' disloyal, disruptive, inferior, and untrustworthy.Though overwhelmingly of Irish extraction, even by 1900 most Catholics were Scottish-born.Unionist hegemony up until the 1960s marginalised them from public life, and the interwar years sparked attempts to scapegoat them for the crisis that anyone familiar with racism would instantly recognise.Yet they were still known as 'Irish' up until around the Second World War