I enjoy hearing stories about (African) American experiences like this.  There was...as you mentioned a 'Great Black Migration' that happened in the States. It sounds as though you've done quite well for yourself and you have a strong community around that cares about you getting ahead in life.  That's awesome and we all need something like this in our lives.

Thanks for sharing your back story about you and your family.  I do appreciate someone talking about something else other their newest laptop, or the latest distro of their favorite operating system.

This is a podcast and like most podcasts there's lots of rambling and lots of pundits.

I think you are making some broad generalizations about People Of Color (POC) in America -- even though you are a member of that community.  I know you stated - this is from your experience.

For instance, you state you feel the reason that POC are not vocal in the Floss community is because they're somehow afraid. I don't believe this at all.

I think many POC are unaware of many FLOSS technological tools...but so are lots of other people who are not black, brown, or women.  Being ignorant or unaware of something does NOT make you afraid !

I'm sure your family was apprehensive of being part of that Great Migration; but they did it!  So did millions of other African Americans. https://en.wikipedia.org/wiki/Great_Migration_%28African_American%29

POC consume a lot of technical information just like any other folks in America. They use computers, cell phones tablets...etc. Additionally, they spend lots of money on tech related items. 
Tech companies want POC communities (all communities for that matter) to consume their products. They have no interest in these communities participating in its implementation.

For instance, Are we to believe that Apple couldn't hire a POC as part of their QA team for their watches ??
https://thegrio.com/2015/05/01/apple-watch-dark-skin/