Rockstar is also (in)famous for putting rather scandalous references in their games. One such Easter eggs in Red Dead Redemption 2 comes in the form of the understatedly nefarious Ku Klux Klan.
You can witness the meeting by traveling to Hill Haven Ranch at night. The ranch is located east of Scarlett Meadows at Lemoyne region. The best part about this Easter egg is that you can interact with the Klan, killing them all.