No way ! Richie had a black friend, an the episode was realy anti-racist. I even remember that now cause it made an impression on me when I was a kid..
"Sticks" was at the party no one came to; Howard explained to Fonzie that "prejudice is stronger than cool" , but in another episode, Fonzie and Al went down South and Fonzie broke the color barrier at that redneck diner having a cup of coffee with Charles.
I had a much bigger issue with a singer, guitar, bass, drums and piano being played and not an amp (or even any wires...decades before wireless technology existed) in sight.
Oh, brother

Also, I don't think Garry was saved. Hope this helps.