Okay, so first of all, they currently have the power to raise and lower interest rates without the people’s approval. This isn’t some undemocratic seizure of power.
Secondly, I don’t think they should have carte blanche to raise and lower every tax. It could be within some range of the federally set tax rate, e.g 2.5 points above or below.
It’s merely an idea, as people often complain about the BoC only having “one lever”.
Because people don’t want higher taxes. Raising taxes is always politically unpopular even if for a valid reason. Politicians often do the opposite, e.g Trudeaus grocery rebate just puts more money into circulation and contributes to inflation. The BoC can operate autonomously from the federal government and could conceivably raise taxes when a politician would not have the political capital to do so.
Both provinces can have amazing nature, it’s not a competition.