I bet I can find more owners and academies willing to pick up the tab for a good player than you can find good players pushed out because they can't afford it.
The model is simple, you are just making up assumptions that have no way to be proven. I'm sure 20 years ago this was happening but it isn't today. There are tons of programs available for kids to keep playing. There is a relatively lower-income community in the next county over. They always had a scrappy travel team that was our rival and beat us most of the time. They all opted to play Legion ball for their summers because it was either very cheap or free. Those kids are still being recruited and a few of them were even scooped up by a couple national clubs to play in Jupiter this year. If the family of a good player today can't figure out a way for their kid to keep playing travel baseball they aren't trying very hard.
This sport can be very expensive and suck the money right out of you. It doesn't have to be though. Just in the past couple of days I've seen prime examples posted here of parents wasting their money on things that likely won't yield results.
No need to bet, again who absorbs the cost, ask your friends, does it come out of their pocket or is the cost spread out from the lower levels. Simple business model,
Note, while attending the ABCA Convention in 2020 I sat in on a panel discussion discussing the diversity challenges .
The program in question are more area based, ie. RBI.
As for Legion Baseball, it is not truly available in all areas and has since a significant decrease especially in NJ, as for in South Jersey the powerhouse (Legion team) feeds into the powerhouse Private school, due to the increase influence of travel baseball, it is difficult for the legion team to retain players because the fear missing out of the showcase travel circuit.
I will keep it this simple, Willingboro NJ, eliminated their LL programs around 2006, so where to the 6u to 12u learn the basics.
Because of limited resources, the high school team has it challenges.
As for assumptions, we can go back and forth, all you have to do is look at the makeup of many college baseball teams to understand there is a lack of opportunities at many levels.
Note, been there and done that between 2010 and 2014, told my son when he sees somebody that looks like him, nod your head to acknowledge.
Upon looking at every roster for the since 2014, at the college level you will notice less than 5% coming from African American background.
Now there are other nuances, to this challenge, for example, sports are normally generational, between 1990 and 2010, many AA went in a different direction from a sports perspective, and as you aware, the game changes at 13u/14u level.
Secondly, once you get to the high school level, sports have been pushing for specialization by training 10 mos out of the year.
Of course there is much more to this dynamic.