By that he means that Irish were considered by racists from 100 years ago a subrace of white, as were eastern European until the late 90s (that sentiment still

By that he means that Irish were considered by racists from 100 years ago a subrace of white, as were eastern European until the late 90s (that sentiment still exist in some places), and Italian were considered 'colored' until the 70s. Racism do not have any internal consistency, that's why I heavily judge the intelligence of those subscribing to it. Indians were 'black' until weren't in my country.