Nobody's saying you have to date an ugly or ignorant or disrepectful blue collar brother just because he's a brother. Likewise, a brother shouldn't feel compelled to date an unattractive (to him) sister just because of her education, wealth or career. What we are saying is that a person (man or woman) not having a "professional" job, does not make them less qualified to be a good mate. A college degree is not THE gold standard for intelligence.
Ultimately, I think you have to go where your traits are desired. Some men like skinny women - some like big women, etc. Find that place where like interests, qualities & goals are pursued.
HB & Thayfen are giving you some playful jabs , but you are setting up a catch 22 with your expectations. If a brother is eliminated from your (and many other sisters) dating pool because he's blue collar, what is he supposed to do? Sit home dateless, just so he doesn't receive scorn for interracial dating? I've never dated interracially, but if that floats your boat & you're mature enough to deal with all the social implications of a long term relationship with someone outside your race - DO YOUR THING!