As others have stated, do not let social media bias your outlook on all Black women. Women doing those things on social media are self-selected and you should just realize those particular women are stating loud and clear that they are not wife material. Instead, go out and seek women who carry themselves with some decorum, grace, and humility.
It may seem difficult, because right now the ones receiving all the media attention are poor specimens for marriage, but the marriage ready ones are out there. You just have to control your lust and actually sit down with the women and listen to what they say comparing it to what they actually do. Give a woman enough time, listen well to what she is saying, and she will expose what she is truly about if you do not allow your perception of her beauty to blind you from the truth.