This might be a stretch on my part, but perhaps one reason for the bond between Hillary and PoC... [View all]
...has to do with the fact that she too has been on the receiving end of bigotry (albeit sex/gender-based bigotry) and discrimination, vile hatred and outrageously offensive remarks, and is widely perceived by much of white America (especially white men, but also, admittedly and unfortunately, a significant number of white women) as a "threat" to the "traditional values" of "our country" (i.e. white America's country)?
Let's face it...just as the American media and the white public has held President Obama to an impossible-to-meet standard (a standard which they would never even consider holding a white man to), so too has Hillary been held to a similar double standard. Just as President Obama must constantly walk a very fine line between being perceived as "too Black" to be not seen as a threat or "not Black enough" to authentically represent the interests of the Black community (and other PoC, for that matter), so too must Hillary constantly walk a fine line between being perceived as "too feminine" to be taken seriously and being considered "a rude, shrill bitch." I strongly suspect that the Black community - that is to say, Black people, and most Black voters in particular - have picked up on this, ever since the early days of Bill Clinton's Presidency, when Hillary clearly and confidently stated that she was not interested in being a "submissive" or "deferential" First Lady...not by a long shot.
Which leads me to the commonalities between how Hillary is stereo-typically perceived, and how Black women are stereo-typically perceived by white America. Simply put, both Hillary and Black women are accused of being "overly assertive" or even "aggressive" because they don't conform to traditional white, middle-class gender norms. In other words, they are not being ladylike. And thus, the double bind that both Hillary (and other ambitious, Type A personality women, in business, politics, and the like) and Black women find themselves in: the more they assert themselves, with confidence and without shame, as strong, driven, and capable women, the more their womanhood (and by extension, their very humanity) is denied and degraded, and the more outright hostility, abuse, and - potentially - violence they face from men (usually, white men) as well as those women who enable and enforce sexism in general. And people still seriously wonder why so many women are reluctant to seek out leadership roles, or shy away from them altogether!
IMHO, all of the above could very well be a significant explanation for why so many Black voters embrace Hillary. But that's just my view; I'm curious to read those of all you fine folks here in the African-American Group!