Double standards apply here. If you disagree with something anything goes. That works until the other side responds likewise. Conflict results and it could lead to civil war.
I have developed a habit of turning things about when a Lefist does or says something, just to see what what it would sound like if WE did something similar.
Yesterday there was a comment from the DNC Chair who said “It is my job to tell white people when to shut their mouths” and I thought “Hmmm...how would that be received if the RNC chair said “My Job Is To Tell Black People When To Shut Their Mouths...”