May I address this?
There are over 15 million taxpayers. There are 22 million tax filers, but 15 million taxpayers, roughly—I'm rounding it. That 15% goes to 15 million people; 50% of men and 68% of women are in that bottom tax bracket, so it goes mostly to those people.
But just consider this. There are 31% of all tax filers who have incomes so low that they don't pay taxes. So in fact the poorest Canadians are getting nothing from that 15.5% being rolled back to 15%.
Among women, 38% of women will see nothing from any income tax cut, and they are the poorest women—at least, they have the lowest taxable incomes. Most of them are genuinely poor, but there are income-splitting issues too.