Congratulations on YC, pursuing your dreams, and taking on an idea that is obviously somewhat controversial. Based on YouTube, social media platforms, and the Internet in general, our worlds are becoming more polarized and segregated by default whether it's from politics or sports. The end result is a fight/flight mindset when it comes to culture and identity. It's important to fight for the right balance or else we may be left with a very White & western hegemony. This pendulum is very important to track and ensure extremism is not practiced.
In my opinion, we need to recognize the voices and stories of black communities and provide access to platforms where creators and actors can express themselves genuinely. As you recognize, there's a disparity between the 90s where this was more successful to where we are at today. You could argue the black film industry has evolved and adapted from the 60s and 70s to where it's at today, not getting worse or quieter but more niche.
Is the goal to create and perpetuate insular communities of color? Is it to equally provide opportunities of mixed cultures and ethnicities? Can black creators easily showcase stories of non-black stories? Each of us lives in very different worlds of integration and has different stories we want to share. A community and platform that can address everything with transparency and sustainability is going to win because imo that's the bigger opportunity.