Is masculinity slowly dying?

To me, masculinity is a quality that an individual exudes naturally and this never changes. Some will always have that innate 'something' that gives off an aura of authority, leadership or assertion. What I would say is that men have had to change to avoid falling foul of modern convention. Being gallant, for example, can lead to a rebuke and men now feel edgy about giving their seat up on a bus or offering to help a lady with something. I'm not saying this is always the case but there is an increasing accusation of sexism these days that I, personally, see as a pervasive phenomenon. I stand ready for some 'incoming'...