Being a man means that you're not emotionally reactive to trivial things, or really anything that would fuck with your zen. No one should have real estate in your head if you're a real man. All those school shooters were the last thing that you'd use to define what a man really is.
Metrosexuality... whatever. Let people dress themselves up. I take care of myself, but I do it for myself because I like looking and feeling good. You won't find me plucking my brows and putting on make up to accent my cheek bones, but if guys wanna do that, whatever. They're not competing for what I'm competing for. Real men, if there are any left, are in a class all their own. They should be competing with themselves if they're real men. They also shouldn't be preying on others too.
Eckhart Tolle put it best: "Power over others is weakness disguised as strength". People don't even know what a real man is or what masculinity is. Let them fear and criticize. Unless you're out there bird chesting (which is not manly and a huge show of insecurity), then you have no problem. Be a man. Keep quite. Let the social justice warriors lose sleep. Fuck the captain of the cheerleading team and do your own thing.