Well, see, that's the subtle part. Is there really a crisis-level crime wave (in the US)? There was a sharp decrease in crime in the initial months after lockdowns went into affect, but a spike in gun purchases. As such, homicides, which in the US are overwhelmingly committed with guns, are definitely up. https://www.theguardian.com/us-news/2021/jun/30/us-crime-rat...
But it's not anywhere near the historic rates of the '70s. You won't know that from reading the "violent crime collapse porn", which likes to point to absolute numbers (Most murders in 25 years!) while ignoring population and other factors.
So my contention is that the collapse has been embraced by the reactionary Law and Order types to sow fear and uncertainty. This is partly has a pushback against the attempts to reform police and partly as a way to push for economic austerity as well as a return to racist criminal justice policies of the 80s.