In canada how is it ensured that democracy protects minority rights and maintains a majority rule?

In Canada, it is ensured that democracy protects minority rights and maintains a majority rules through the House of Commons. The appointed prime minister is usually the current leader of the political party that can obtain a plurality (a relative majority of the vote) in the House of Commons, thus ensuring that the majority rules. Then, there is Her Majestyâ??s Loyal Opposition or the Official Opposition. This is usually the party with the second-most seats in the House and serves as a check on the government. They maintain a shadow cabinet that can speak on the governmentâ??s portfoliOS and, if need be, take over the government in the case that the sitting government lose the confidence of the House.