And this happens on such a regular and systemic, and party-lines nature, so that all these liberal cities consistently undercount homicides by such incredible margins, despite all their police forces leaning heavily towards authoritarian-right?

Do you have any proof for this, or is this a 'the earth is flat' sort of assertion? Can I just as confidently assert that it's actually the Republican-ran states that dramatically doctor and undercount homicide stats?

Maybe Memphis actually has 10x the homicide rate of NYC...