I admit it. I think referring to those with a certain skin pigmentation as "people of colour" is idiotic and it offends me in some vague way. Everyone is one colour or another. In fact everyone is a mixture of colours (though rarely green), so using this phrase to describe a specific subset of people annoys me. As a response to this usage I shall refer to women as "people of gender" whenever it occurs to me to do so, and I would encourage others to follow my example.