Why do American protestors block traffic ?
Its so stupid its just asking for someone to get run over.
I'm going to try and explain this from my viewpoint, as a white man who lived in and around St. Louis for about a decade. This might be depressing as fuck.
This is the St. Louis metro area:
See Interstate 64/40 cutting through the middle? If you live north of that, south of St. Charles Rock road, and east of Skinker (the east/west boundary of city v. county) you either live within the immediate vicinity of Forest Park or you're black. Most of what's north of the Rock Road but south of 70 is black too, but there are a few pockets of white walled gardens spotted around. At that point no one in St. Louis gives a shit about you. Unless they need to evict you in order to build another stadium for the Cardinals, Blues, or because some white dude with friends in state government wants to.
See the area across the river named "East St. Louis"? Same thing, only the black people there have basically nothing worth taking, so the basic public infrastructure isn't even being maintained (that's in Illinois by the way).
See the areas on the middle "spoke" of the St. Louis County/City buffer? Crestwood, Webster Groves, Brentwood, Clayton, etc.? Basically all white.
The buffer between 64/40 and 44 is a "transitional" neighborhood, i.e. mid-gentrification. The areas south of 44 have seen a substantial amount of gentrification already, especially along the major roads and attractions (Grand Blvd. and surrounding the Botanical Garden as two examples).
The entire metro area experienced massive white flight in response to the civil rights movement. Now white people are moving back in but in a way that basically repossesses district after district, not being truly "nice" until almost all the black residents have been driven out.
Simultaneously Missouri is a voucher state when a school fails no child left behind, but the parents are more or less responsible for getting their kid to the other school. As a result it's basically an assumption that if you're poor and black you'll keep going to the failing school while if you are middle class and white you'll transfer out to one of the middle spoke school systems, who will then hand a bill back to your in-district school equal to their per-student rate, which based on property tax differences can be as much as double what the losing school district actually has for per-student funding. Making the school even poorer, and even more likely to fail.
When you go house shopping in St. Louis all of this is clearly spelled out to you. If you are white you buy in one of the gentrified or mid-gentrification neighborhoods. Even beyond that there is another layer of ethnic walled gardens going on. The Italian community, referred to as The Hill, largely avoided white flight (located in the area between 44 and Kingshighway). When my wife and I were house shopping we got the full court press from real estate agents to move there because we were "the right kind of people". My wife is 100% NYC Italian and we were both raised Catholic. So yeah, "right kind" for sure.
What best summarizes this is the quintessential St. Louis question: where did you go to high school? My wife once asked me why people kept asking her that. This included one time when her response of not being a native led to the follow up of "well, where do you think you would have gone if you were?"
The answer? St. Louis is segregated to the point where your high school tells a person your most likely ethnicity, religion, economic status, and political views. It is a one or two word answer that effectively summarizes your entire existence.
That's St. Louis. So when black people protest in the parts of the metro area they live in no one notices, just like they don't notice all the policy brutality that was happening for years prior to Mike Brown being killed. Just like they've ignored the decay of social services throughout those areas including basic road maintenance and working septic. Just like they've ignored everything else about being black in St. Louis. The only interaction white St. Louis has with black St. Louis is when they drive on the highway from point A to point B and happen to pass through the black neighborhoods where they make sure to have no need to get off the highway for fuel in "those parts of town".
It's fucked up. It's a big reason why I left. My wife and I had our first kid and I simply couldn't see a non-violent future for her there.