[Leaning Right]

> I remember when the classified pages were divided into job opportunities based on “colored” or “white”. <

Yes. And before that it was (among others) No Irish Need Apply. From New York Daily Times of Mar 25, 1854:

[Vaquero]

Lots of NINA job postings. The “I” could stand for Irish or Italian.

[Bigg Red]

Oh,I am well aware of the discrimination against the Irish. (I am more than 3/4 Irish blood.) But I don’t have any personal recollection of the Irish discrimination, and there is nobody alive who remembers that.

The racial discrimination is much more recent. Those classified ads appeared in the 1960s.