Renowned US Satirist Tom Lehrer recorded this in 1965 - what has changed in the last 60 years ?

National Brotherhood Week

Oh, the white folks hate the black folks
And the black folks hate the white folks
To hate all but the right folks
Is an old established rule

But during
National Brotherhood Week, National Brotherhood Week
Lena Horne and Sheriff Clark are dancing cheek to cheek
It's fun to eulogize the people you despise
As long you don't let them in your school
Oh, the poor folks, hate the rich folks
And the rich folks hate the poor folks
All of my folks hate all of your folks
It's American as apple pie

But during
National Brotherhood Week, National Brotherhood Week
New Yorkers love the Puerto Ricans cause it's very chic
Stand up and shake the hand of someone you can't stand
You can tolerate him if you try

Oh the Protestants hate the Catholics
And the Catholics hate the Protestants
And the Hindus hate the Muslims
And everybody hates the Jews

But during
National Brotherhood Week, National Brotherhood Week
It's National Everyone-Smile-At-One-Another-hood Week
Be nice to people who are inferior to you
It's only for a week so have no fear
Be grateful that it doesn't last all year