It truly depends:
If you are talking about from a pure "creative" standpoint, then there is no reason to give up on Black music as it is. The issue is that we are lazy in our pursuit of finding what we "want". We settle for what is mainstream but complain about it. It might take some digging, but you can find rappers who can still "rap" and singers who can still "sing". You can find rappers who don't glorify things you don't want them to, but they aren't popular. We let the masses dictate our taste. You can find a new rapper with only 100 fans, but he might spit the shyt you want to hear, the problem is that you will assume you don't want to hear it because he isn't popular
If you are mad that other races/cultures have entered the genre, reinvention won't really matter. They stole Jazz, Rock N Roll, and they are taking Rap and R&B. We as black people are innovators, but we haven't always been the best gatekeepers, preservers, or the ones to monetize off of our creations. No matter what we do, it will be considered fringe and wrong until they figure out how to mimic, and then it will be infiltrated and watered down.
The best thing to do is to support people who make what you like to hear and put other people on them as well