“Turn the other cheek” has never been interpreted by the church as requiring pacifism in the face of force, especially, say, in the face of threats to one’s family.
I remember observing a debate some years ago on this forum. Person x advocated that “turn the other cheek” required pacifism. The pushback he got was that to him, there was literally no instance of ever using physical force that was morally allowable - including to prevent the Hypothetical rape of his own wife or daughter. As he had pointed out to him, not only did the church not preclude use of force to prevent such event, but, IIRC, neither does natural law imprinted on our hearts: we’re supposed to take action to stop that kind of event if we have the chance. Further, there are some - such as our children - to whom we owe a duty to keep safe, both legally and morally.
I also remember someone saying to person x that at some point “turn the other cheek” becomes indistinguishable from cowardice, and being a faithful catholic does not require us to exhibit cowardice in the face of evil we have the power to prevent.