Revisit post number 14 of this thread. (See Video). Then you would understand why investment in the black community is never welcomed by the black community.
Do you understand what gentrification means? It's getting rid of poorer citizens by making it economically impossible to live there. Giving poor people no place to live. They aren't against investment but they want a place to live that they can afford.
Your racism fails to understand the actual reality in St. Louis. Black people are not some foreign creatures, they're human beings just like you. However, they are targeted consistently targeted by police for petty crimes and arrested for them.
This leads to a criminal record that they don't have the money to expunge. Which leads to less job opportunities for them. Which gets them involved in worse crimes to survive like robbery, assault and even murder. Thus perpetually giving into this ridiculous stereotype.
And white flight occurred because whites believe (and still to this day) that they are superior to the black people and didn't want their kids going to school with them. St. Louis County has 91 municipalities, most were set up to keep black people out. They all had police to make life unbearable for black people.
It's not their skin color that makes them prone to crime, it's poverty, lack of job opportunities and police harassment that puts them in this situation.
How can the police treat them well when every routine stop turns into a chase or fight?
EVERY single one? No, it doesn't. Police should treat them well regardless of what others who looked like them did before because THEY AREN'T ALL THE SAME.
You are correct in your assessment that they aren't all the same. But they are one of the most group think cultures in the United States. They vote the same, they suffer from the same problems, they defend black deviance almost unanimously despite the evidence otherwise (See Treyvon martin & Mike Brown), and they largely blame their problems on other people. 1 in 6 black males will be incarcerated in their lifetime. You would not police a black neighborhood the same as you might a white neighborhood just as you wouldn't patrol Fallujah the same as you might the "green zone" in Iraq.
They all vote the same because their interests will never be heard if they aren't together.
Black people make up about 13% of the population. They are the clear minority. If they were divided 50/50, they would never be heard. However, the phrase "strength in numbers" proves itself here. By making sure a political party takes them seriously as a group, they can have more power in numbers. The Democractic party doesn't view them as "lazy, criminal welfare queens" as the right does, they do their best to listen to them and solve their issues. That's why they get the votes.
But when you police a neighborhood and you use excessive force on people doing minor shit. Trayvon Martin was running away from someone who was following him. Trayvon Martin didn't commit a crime, but people on the right wanted to paint him as a hardened criminal. The most frustrating part about Trayvon Martin was 3 things:
1. People claiming George Zimmerman had a right to defend himself but Trayvon Martin did not have the right to defend himself from some stranger following him in a car.
2. In both cases, the complete 100% belief of someone TRYING TO GET OFF FOR MURDER. You don't think that person isn't going to frame the narrative in a way that makes them look innocent?
3. For both cases, the lack of respect for the deceased. Trayvon Martin was in a morgue for 72 hours as his family was looking for him and filed a missing person report. The police failure to even think that a black male could live in the complex was insulting. Michael Brown laid in the street uncovered for 4 hours. 4 HOURS?? There was already high tension and then you leave a dead teenager in the street for the whole neighborhood to see for 4 hours is insane. This apathetic response by police fueled the anger and emboldened the people's belief that the police do not care about black people.