Conversation so far:
What led to Hattie McDaniel's death?
In August 1950, Hattie McDaniel suffered a heart ailment.
What did Hattie McDaniel's heart ailment lead her to do
Hattie McDaniel entered Temple Hospital in semi-critical condition.
What did entering the hospital do for Hattie McDaniel's heart ailment?
Hattie McDaniel was released in October to recuperate at home, and was cited by United Press as showing slight improvement in her recovery from a mild stroke.“
What did Hattie McDaniel end up dying of?
Hattie McDaniel died of breast cancer at age 59 on October 26, 1952.
Did something bad happen after Hattie McDaniel's death?
Hattie McDaniel wished to be buried in Hollywood cemetery, but its owner at the time, Jules Roth, refused to allow her to be buried there.

Question: Why was this so terrible
Self-contained rewrite: Why was Hattie McDaniel not being allowed to be buried at Hollywood Cemetery so terrible?