You argue the way a "flat earth" conspiracy theorist argues. All of your reactions are based entirely on anecdotal claims and hand waving to dismiss any explanation you don't like. You've made no serious effort to engage the science and you self-select only those sources that support your preconceived notions. Consequently, your conclusions are only appear valid from your own limited perspective.
Flat earthers don't apply the same standard of evidence for their claims that they do to those that support the concept of a globe. If you say the Earth is round because astronauts have seen it from space, they'll say that astronauts are part of a
global planet-wide conspiracy and the photos of the Earth from space are all fake. They think there's a massive ice wall holding in the oceans, but nobody has proof of that.
In either case, the best way to settle the dispute is to zoom out.
Your unit of analysis is almost exclusively individual. "If so and so got fired, they probably deserved it." "If so and so was arrested, they could've avoided it." "If things are so unfair, how come Kevin Hart has money?"
When we talk about systemic racism, our true unit of analysis is the society.
What would a racist society look like by the numbers? What would society where racism was a statistical non-factor look like?
When presented with data on drug offenses, you offered the following rationalization:
"What’s easier to spot. A drug dealer in the projects where most people don’t have money to blow on a nice car? Or a drug dealer in the suburbs where everybody has a nice car?"
Here, you appear to assume that the reason White respondents in the study were statistically more likely to have sold drugs is because they'd be "easier to spot" in the suburbs. If that were true, wouldn't they be arrested more often? Instead, the opposite is true - and by a wide margin.
In a racist society, you would expect to see vast racial disparities in wealth - and that's exactly what we have. Yale researcher Michael Kraus has studied the racial wealth gap extensively. They've found that, "Black families in America earn just $57.30 for every $100 in income earned by white families, according to the Census Bureau’s Current Population Survey. For every $100 in white family wealth, black families hold just $5.04."
In a racist society, you would expect to see vast racial disparities in the criminal justice system - and that's exactly what we have. On average, one in three Black men in America will be jailed in their lifetime, compared to one in seventeen White men.
Overall, the nation's schools are as segregated today as they were in in the 1960's.
http://www.newsweek.com/2018/03/30/school-segregation-america-today-bad-1960-855256.html
It's getting worse, not better.
https://www.usatoday.com/story/news/2016/05/17/gao-study-segregation-worsening-us-schools/84508438/
https://civilrightsproject.ucla.edu...y-and-state/Brown-at-62-final-corrected-2.pdf
At the societal level, the United States certainly looks intensely racist. The facts are what they are, and they run contrary to your anecdotal claims that racism is an overblown relic from a bygone era.
If you choose to justify these trends, you would have to believe some very racist things. To justify the disparities in arrest, sentencing, and incarceration, you'd have to argue, against evidence, that Black Americans are somehow predisposed to criminality. To justify the wealth/income gaps, you'd have to argue that Black Americans are, as a whole, somehow less qualified or deserving than White Americans.
Absent overtly racist explanations, when asked to explain any one of these broad social disparities in isolation, racists tend to defer to the other disparities. If Black Americans are more likely to be arrested, they may argue, it's because of poverty - but what, then, causes that economic disparity? If Black Americans are more likely to be poor, they often justify it by spouting some racist nonsense about "the Black family." If Black children are more likely to be raised in single-parent households, they justify that by referring to the number of Black men in prison - and the cycle begins anew.
In 1983, Marilyn Frye famously conceptualized sexism as a birdcage, writing,
"If you look very closely at just one wire in the cage, you cannot see the other wires. If your conception of what is before you is determined by this myopic focus, you could look at that one wire, up and down the length of it, and be unable to see why a bird would not just fly around the wire any time it wanted to go somewhere. Furthermore, even if, one day at a time, you myopically inspected each wire, you could still not see why a bird would have trouble going past the wires to get anywhere. There is no physical property of any one wire,
nothing that the closest scrutiny would discover, that will reveal how a bird could be inhibited or harmed by it except in the most accidental way. It is only when you step back, stop looking at the wires one by one, microscopically, and take a macroscopic view of the whole cage, that you can see why the bird does not go anywhere; and then you will see it in a moment. It will require no great subtlety of mental powers. It is perfectly obvious that the bird is surrounded by a network of systematically related barriers, no one of which would be the least hindrance to its flight, but which, by their relations to each other, are as confining as the solid walls of a dungeon."
If you care in the least about basic justice and human rights, you need to step back. Stop focusing on anecdotes. Stop focusing on individuals. If you don't like people making excuses for the unfortunate circumstances in which they find themselves, stop making excuses for a society that has persistently manufactured racial inequality from the time of its inception.
What would you say to someone who's unhappy with the state of their lives? Don't count on someone else to improve things for you? Take responsibility? Put matters into your own hands?
If you don't like the injustice in our society, perhaps you should apply that same attitude to yourself. Stop making excuses and do something about it.
If not, don't pretend that you care and don't chastise those who are trying to pull this whole wretched society up by its bootstraps. What goodness America has comes from those who've dedicated themselves to this task, to the fulfillment of this country's purported ideals. A person who only cares for themselves cannot be considered a patriot.