The crime rates in other places is irrelevant if the city you've lived in for the last 20 years has become noticeably more dangerous.
This is not "a narrative that keeps being pushed without merit", in fact the people who dismiss such claims are often the ones who live very insulated lives.
I've been here 26 years this time (and a couple of years before that) and similarly not noticed it getting noticeably more dangerous.
(on the caveat side, I am a fairly hefty white bloke who apparently "looks scary" which might explain things.)