I wonder what work by Sinclair Lewis the child of a Holocaust survivor was referring to.

"My Student Gifted Me His First Guitar Before Being Deported..."

https://www.reddit.com/r/Guitar/s/ZazNAdy1Ew

"At least my mom doesn't have to see it." 

~ dagaboy

Maybe it was this one?

"It Can't Happen Here by Sinclair Lewis" | Goodreads

https://www.goodreads.com/book/show/11371.It_Can_t_Happen_Here