COME/GET DOWN OFF YOUR HIGH HORSE

COME DOWN OFF YOUR HIGH HORSE

GET DOWN OFF YOUR HIGH HORSE

(STOP BEHAVING AS IF YOU WERE SUPERIOR)

e.g.


It is time for the intellectuals to get down off their high horses and to really take the struggle into the ghettoes.

https://www.collinsdictionary.com/pt/dictionary/english/to-get-off-your-high-horse