"He would nae understand that"
Wha', me Jimmy?
My old man was born in Glasgow and spent his life with the nickname Scotty, even though you couldn't burn you way through his Scouse accent with a blow-torch

I'm not familiar with Dick's text, but I still think it's a complaint about and a reaction to prejudice rather than a campaign message against it
Maybe splitting hairs - I do that a lot
Jim