Why are white men so easily intimidated and jealous?

I know its going to rub some the wrong way but I've come to notice this with white men. when I bring up dating outside my race they always have something negative about the man of a different race. Even on gag I see a lot of white men getting bent out of shape over women not wanting to date them.
Why are white men so easily intimidated and jealous?
Updates
+1 y
I think it's only in america. Europe seems open to blending of cultures perfect examples David Bowie and his wife Iman, mick Jagger and the African American model , slash of guns and Rose's moms black dads white
Why are white men so easily intimidated and jealous?
Post Opinion