Out of curiosity, what makes you say "You can't get anybody to talk about this fact though, they shout you down and or run away from it"? Has that been your experience among your friends and family, or on certain web platforms?

You write "absolutely nobody at a high political level in the US wants to discuss." But the pinned tweet on Chicago Mayor Lori Lightfoot's Twitter account (https://twitter.com/chicagosmayor) lays out resources and tactics targeted toward specific high-need areas of Chicago to make the city safer (and links to the city's violence reduction strategy which goes into an impressive amount of detail: https://www.chicago.gov/city/en/sites/public-safety-and-viol...)

And going a bit further back and higher up in level of government, didn't Trump delight in blaming democrats for murdery inner cities, specifically calling out Chicago and Detroit? https://www.washingtonpost.com/politics/2020/06/25/trump-kee...

A quick Google search convinced me that this fact has been intensely covered in mainstream news sources, all of which focus on the same problematic cities that you mention, and explores the many contributing factors that make these cities hotspots of violent crime.

Just three examples from the first page of Google results for the unquoted query `homicide rate us cities`:

1. April 3, 2021. "The US saw significant crime rise across major cities in 2020. And it's not letting up" https://www.cnn.com/2021/04/03/us/us-crime-rate-rise-2020/in...

2. April 19, 2021. "Murder map: Deadliest U.S. cities" https://www.cbsnews.com/pictures/murder-map-deadliest-u-s-ci...

3. June 1, 2021. "With Homicides Rising, Cities Brace for a Violent Summer." https://www.nytimes.com/2021/06/01/us/shootings-in-us.html

The reality I'm seeing is that lots of people are talking about urban violent crime hotspots, and that at least some local governments and communities are demonstrably working to address it.