But isn't that true of most of the U.S. We have more crime everywhere than most the rest of the world. And especially violent crime.
Australia 692 violent assaults per 100k [1]
California 430 assaults per 100k [2]
So, you'd also be trading more of a rare really bad thing for less of a relatively common bad thing.
1 - https://www.osac.gov/Country/Australia/Content/Detail/Report....
2 - https://www.ppic.org/publication/crime-trends-in-california/....
The web app doesn't seem to support direct linking to query results, but it's in here: http://crimetool.bocsar.nsw.gov.au/bocsar/ under Assault - Non Domestic.
At the end of the day though - people tend to consider being murdered a significantly more disruptive event than getting punched in the face.
California has a much larger population and twice the economic output of Australia. It seems much more reasonable to compare Australia to one state than to compare it to the entire US.
I can see why some people could see a 450% increase in the likelihood of being murdered as a comparitive warzone.