african americans & the rush process

so, lets be honest here. 98% of african americans joined a soro or frat outside that is NPHC. i am black and a female and i am really interested in joining a PHC soro.. mostly like KD (love the girls here,lol) ,DG, or alpha phi this coming fall semester so does KD give or any of the other soro willingly to give bids to girls or is there not too much diversity when it comes to this subject? I just wanted to know because i have been judged for expressing interest into joining a PHC sorority... Also is it a REQUIREMENT to know someone in the house to get you in ?
Thanks for all your help!