I just started working with a guy who spent 5 years as a sniper in the Marine corps. And he wears that RN badge just like I do. I want someone to tell him he isn't a 'man'.
I've always had a comeback ready for people who are quick to judge the occupation for myself, but honestly, i never really need it.
Besides, what about your cubicle job and looking at accounting/anything business related is more manly than my chest compressions, running codes, having back to back level 1 traumas in 2 hours, hanging meds, starting 14 g IVs, etc. Let me think about that..oh right, nothing.
Nursing is what you make of it. Dont let anyone else's ignorance affect your decisions.