They are expressing it by their absence. The men still arguing with women are the ones still trying to reach understanding. They are the ones who still believe in women. The rest have quit talking to women completely. Or rather, they have quit listening to women while they rag on incessantly.
Anger is a natural reaction to a feeling of being attacked.
Anyone who doesn't see how men are under attack every day just isn't looking. Everything men do has been under attack, and people still wonder why men are so angry. No one ever acknowledges that the culture decimates any man who quits doing that which the culture also ridicules them for doing. The notion of benign intentions on the part of men has been replaced by universal suspicion of malice. The very valuable social asset of a reputation has been destroyed culture wide.