Watched that clip last night...he is correct.
A teeming megalopolis of "diversity" will only be kept from blowing apart at the seams by a heavy handed police presence.
Remove that, while at the same time agitating and inflaming the worst, in terms of committing violent crime, demographic group within that toxic stew of diversity, and yeah, of course, violent crime will go through the roof.
Diversity and teeming filthy cities of millions and millions of people all stacked upon each other and forced to "all get along" at the barrel of a cop's gun is no way to live.
Surveys and studies and polling have all shown that people are most content, most happy and most productive, in small communities of people where they are similar to each other, in religious, political and ethnic traits.
Nothing new here, by the way. We've been through all this during the last Marxist revolution in 1960s. Then, as now, mostly driven by shrieking, bitter, college indoctrinated white women, the same no bail, soft on crime, victim disarmament, social justice bullshit was tried, and major cities all around the country burned to the ground.
Some took decades to recover, like NYC.
Some, like Camden NJ or Detroit,
never recovered.