Yes, the USA is significantly under-policed compared to other OECD countries. Defund the police? How about multiplying by ten.
Ballpark, but under Australia's 264 per 100,000, more than England and Wales at 227 per 100,000 and less than Scotland at 318 per 100,000.
The numbers are quite variable between different countries. I presume partly because the definition or role varies?
The UK and Australia have similiar policing roles and behaviours, quite different to the US - more uniform within the countries, significantly less use of guns and force, etc.
Damn near half the population of Australia has used illicit drugs at one point or another:
According to the 2022–2023 National Drug Strategy Household Survey (NDSHS), an estimated 10.2 million (47%) people aged 14 and over in Australia had illicitly used a drug at some point in their lifetime (including the non-medical use of pharmaceuticals), and an estimated 3.9 million (18%) had used an illicit drug in the previous 12 months. This was similar to proportions in 2019 (43% and 16%, respectively) but has increased since 2007 (38% and 13%, respectively) (Figure 1).
What Australia does have is proactive health policies, prison terms with rehab, a decent chance of drug use not marking a person for life, etc.