57.5% at $190,000 is not a millionaires tax. It is a tax on dentists, engineers and two-income families with a mortgage.
Here is what happens next, and it is the same everywhere. The people it was aimed at leave. The people it actually hits cannot. Doctors go to Alberta, founders go to the US, and the family on $190,000 stays and pays.
Canada already loses a significant number of high earners every year.
Every government that does this is surprised by the same outcome. It has never once gone differently.