Sounds to me like all of these cities and their containing states and further countries are on the wrong side of the Laffer Curve. And / or have policies which have a higher cost of obedience than the risk/ reward of illegally skirting them.
Give people legal ways to invest / spend. Sure the criminals will still launder drug money, but then you can isolate that.
You realize that "money laundering" usually isn't about tax evasion, right? it's about figuring out how to take money gotten from an illegal venture and figuring out how to make that money come from a trackably legitimate source, which means paying taxes on it
So, having a lower tax rate, all other things equal, is going to make your state a more attractive destination for money laundering.
One problem that comes to mind is that housing has become far, far less affordable than it would be without the distorting effect of $millions-billions' worth of housing sitting vacant and unused.
Can't speak to Vancouver specifically unfortunately, but I'm dealing with "Her Majesty's Royal Water ownership" while trying to rebuild an old breakwater on my property.
Or if you look at US corporate tax law, until it was updated last year, hundreds of "America companies" were parking their money in Ireland because it was too expensive to bring it back to the US.
I imagine Canada's marijuana legalization will take a bite out of the drug laundering at the casinos.
Give people legal ways to invest / spend. Sure the criminals will still launder drug money, but then you can isolate that.