Turning the cheek is a symbol of non-violent defiance.

In Rome, slaves were slapped with the back of the hand- while citizens or equals would be slapped in society with the palm, open and “polite” in those days.

By “turning the check” what you are saying is: “I am not your slave”

Christ demonstrated non/violent resistance to tyranny throughout his time on earth.

It’s Marxist propaganda that twists those stories into wrongful “submissiveness”