I don't want to get into a debate with you, but I recommend that you choose your words more carefully because earlier, you said, “reached murderous rates”. That implies that tax rates are increasing. That said, I understand you when it comes to comparing the most taxed provinces with the least taxed ones.
We can say that taxes are nearly at the lowest level in Canadian history, especially when we compare them with those of 50 years ago, when tax rates for the highest incomes were much higher than today.