Because wealth is confiscated by the government upon your death?
What is the starting income of the immigrant groups you describe? Were they enslaved and further denied w/systemic racist policies? Did they get thrown into absolute squalor in crime ridden ghettos or they give their kids the best possible chance by being selective in their housing? Did they grow up in broken up homes from a system that incarcerates their fathers on the pettiest of shit or grow up in a healthy nuclear household?
How many of the black people alive today were enslaved? Should the people whose ancestors were sent to Siberia to die also moan and protest every day? They don't, life goes on, they didn't personally suffer because of it, the parents or grandparents did. You're owed nothing in 2020.
What are these systemic racist policies you talk about? Do you mean getting preferential treatment when applying into universities? Asians didn't get it, they actually suffered because blacks were preferred over them even if they had worse scores as has been brought up over and over again.
Many of the Asians in US come from far worse conditions and background than US blacks, yet anecdotally the ones I know do well because guess what, they get educated and get jobs.
If you're a black youth in US, meaning your parents and most probably your grandparents were "free" in the economic sense, you should also have inherited some wealth.
Black fathers are in jail because they're criminals, it's quite simple. They don't have to steal, it's who they are (by they I mean literally the specific people you talk about).
I grew up in a shitty area, chasing thieves (who stole food!) as a teenager, being held up at knife point etc. as were most people who lived in the neighborhood. They lead pretty average lives now, nothing was given for free.
You can always find an excuse for your personal failure, as the BLM folks are.
My guess is BLM types will be complaining about the same stuff 50-100 years from now unless there's literally a 50% tax put on people that are not Black.