I'm a metro guy, and I find that Pink can be worn by men, but I agree that it mostly is a color for the ladies.
I do have a couple of pinkish and salmon shirts and polos, and I wear them from time to time - preferably together with all black pants and jacket for a nice contrast
It looks OK on some guys, but I agree that it's a color mainly aimed at girls and ladies.
But guys should be able to wear it from time to time - it's just another color, though a bit on the feminine side
I play golf, and I see the pink color on polos out there from time to time - and no, they are not all gays, but probably metros like me