So, it's okay for someone to say, "I won't help <race> <gender>, they can forget it", as long as <race>="white" and <gender>="male"?
And how do you define mentoring? Clubs? Participation in class?
Is an Italian man's participation in an open-source project equal to an American's? A Russian's? Why, because they're 'white'?
Should a Swedish man then be barred from help?