A person who has experienced racism has more authority in a conversation about racism. Their experiences make them qualified. The same way that an astronaut is more qualified than any of us to talk about the experiences of spaceflight--we may have studied it, but we have not experienced it.
We in the majority may or may not be wrong, but, when it comes to discussions of racism, we need to listen intently to those who have personally experienced it.
As far as I can tell, I'm the only minority in this thread, and I think that race and racism have had zero effect on my participation. You didn't even know until I brought it up, and I usually don't bring it up precisely to avoid this sort of debacle.
Sadly the reason why there aren't many young minorities in rocketry has little to do with racism, or even a lack of outreach to urban communities. It's completely down to the sad and spectacular decline of American manned space. Young minorities aren't showing up for the same reason young white guys aren't showing up: nothing with a pulse has been launched from American soil in close to a decade.
Rocketry is old and white for the simple, sad reason that the last time kids saw regularly on on TV (Apollo), America was close to 90% white. The Shuttle design is older than that of the Apple IIe.
Kids build little rockets because they are inspired by big rockets. For the longest time, we didn't have any big rockets. The rocketry mini-boom going on now is 100% because of SpaceX (and perhaps Blue Origin).
Go to a meeting of your local WRX club and you'll find a group that closely matches the demographics of today's 20 somethings. It got that way with no outreach or diversity programs whatsoever. They played Gran Turismo as kids, and now they've bought the cars. (As an aside: If Tripoli/NAR, or perhaps Aerotech/Cesaroni were willing to put up some money to staff booths at car shows and show ThreeCarbYen videos/display rockets, we'd probably be able to bring in tons of people.)
If America manages to put a man on the moon or Mars again, if today's kids watch the Stars and Stripes planted in alien red soil, thirty years from now the launches will be more Hispanic and Asian and a less African and European, and there's nothing we can do to change that.
If America doesn't manage to put a man on the moon or Mars, if we have safe spaces instead of space programs, thirty years from now we aren't going to have launches, and there's nothing we can do to change that either.