I'm not sure what cities have more crime and violence than Chicago. But if commenting on Chicago is off limits, what cities do people have your blessing to comment on? I would never want to agitate and alarm.
Per capita, Chicago is absolutely not an outlier for these statistics. Is there a particular measurement that you're familiar with that ranks Chicago at the top?
If you rank by total murders Chicago comes in an easy first. Comparing a very large city like Chicago to comparatively smaller cities blurs the numbers when you are talking per capita.
For example St Louis is a small inner city surrounded by numerous suburbs cities that have much lower crime rates. Those low crime suburbs don't get counted into the per capita rate. Chicago is large enough of a city that both the high crime and low crime areas all get counted together.
But ranking by total murders is definitely wrong, isn't it?
You can have criticisms of the per-capita rate, and you can argue that the smaller cities should have their suburbs included. But the alternative of just saying "let's look at the raw numbers independent of population and see which one is better" would be even more absurd.
Just as an example here, there are plenty of reasons to be distrustful of the per-capita comparisons of Covid infection across states, or to argue that they don't capture all of the nuance of what's going on. But nobody would ever seriously argue that those problems mean you should stop paying attention to population size when comparing Covid rates between states. Similarly, it just seems really silly to me to argue that missing suburbs means we should stop controlling for total population in crime data.
As far as the Google searching goes, I confess to not memorizing the entire corpus of national crime statistics. I should do more objective reading in this regard by looking at official sources like the FBI Criminal statistics. But I looked into the crime stats as per user @Philadelphia's provided Wikipedia link and it appears that Chicago is indeed in the Top 10 range in per-capita murder, if I'm reading that right, and is by far the biggest city in that range, so mentioning it in the context of crime-ridden cities seemed reasonable for that and other factors. But I'm not sure why it wouldn't be reasonable to mention it, why mentioning it would agitate or alarm, or what other cities are appropriate or not appropriate to mention for what reasons.
I'm attempting to be polite and precise in everything I mentioned. If I got any facts wrong, please clarify so I can be further informed. Thank you.