dumpthemonarchy, your posts are completely riddled with falsehoods.
The Office of the Governor General of Canada performs absolutely essential functions for the proper operations of our democracy. It is the Governor General (in the name of Her Majesty the Queen) who appoints the prime minister; certainly, it wouldn’t make sense to trust a prime minister himself to determine who forms the Government in a minority Parliament, would it? Does it make sense for the prime minister to decide whether or not he’s broken our constitutional rules when he’s accused of it? He should decide whether or not he, himself, should be dismissed? These would be much greater blights on democratic governance than the continuance of the monarchy could ever possibly pose. We should remember, as well, that the Governor General’s other functions (i.e., the several awards programs administered by the OSGG) would still need to be performed by someone — we could give those functions to the prime minister, but then he wouldn’t have the time to actually govern. The Governor General is a non-partisan representative of the head of State who rarely makes it to the spotlight, but who must have the executive powers needed to depose an undemocratic Government (for example, if the Liberals had refused to step down after losing the confidence of the House some years ago — and the Right Honourable Adrienne Clarkson noted in her memoirs that she, as Governor General, had been watching very carefully).
False once more.
Former prime ministers (such as The Right Honourable Jean Chrétien P.C., C.C.) have noted the fact that Her Majesty is very knowledgeable of Canadian politics and our constitutional processes, and can be relied upon for advice as needed.
Remember, of course, that the costs of transitioning to a presidency would be absolutely huge; a president would inherently have more of a democratic mandate to intervene in the face of Canadian politics, completely changing the political landscape (i.e., Parliament would lose much of its power to an executive with the elected mandate to interfere in issues that should be exclusively legislative). Also, think of the huge amount of staff that an elected head of State would have, as opposed to the representative we have now in the Governor General. The costs, both initial and ongoing, would be massively larger than those of the OSGG.