Judge not, lest ye be judged.
Taking offense is not a sign of righteousness. If there is one thing I have consistently seen in my life experience is that if someone is so offended by someone’s else’s action that doesn’t immediately effect them, then they have that issue within themselves (or a very similar sin).
So what does that mean as a believer? If you are being persecuted by someone you haven’t personally wronged, then try to understand that their battle is with themselves, not with you. If you can, turn your other cheek; look the other way. Forgive them, as that may be what they are not able to do for themselves.