What is masculinity in the modern world? It is an interesting question as it leads to a lot of uncomfortable skepticism around your motivation. Am I implying men are victims in the feminist world today? No. What I am implying is that thankfully we have progressed with feminism, but in putting our focus there, we have lost a clear definition of what it means to be masculine. The reason I find the question particularly interesting is that most every definition I have heard could reasonably be applied to women. Does the question even matter? It seems it might as boys are falling way behind in many metrics and there are a lot of poor quality men out there (just ask your single friends).
Another theory is that we do not lack definition, but rather the community around boys and men. Our modern world (technology of faux connection) has stripped us of real friendships or any sense of tribe. This isolation leaves men adrift. Men tend to find purpose in others and when there are no others to serve, then we suffer under a lack of self-worth. I do think women tend to be better at building friendships and support networks, so perhaps this is where men are failing.