But that applies to everything. Surely you're not that much of a reductionist that nothing people say can move you. "I have never loved you" is also just some vibrations in the air.

That's a straw man criticism. Emotions are real. Feelings are real. Being offended is real.

The world just is the way it is. One's reaction is the only thing one has power over.

And you’re just a bag of (mostly) water. What’s your point?

My point is that people get offended. No object nor any person nor action can have an inherent property of offensiveness.