While undoubtedly many whites, men, and heterosexuals define themselves
this way, I'd be cautious about stating absolutes like these. There are 2
billion men on the planet, with considerable variation among them. I
imagine that there are well over 3 billion heterosexuals with diverse views
of their sexuality. It's also likely that such views can change over time.
That's certainly an assumption in the field of education where much effort
is devoted to enlightenment along these lines.
Peter