Looks to me like you have it backwards. Both the Democrats and Republicans are right wing parties. Even "socialist" Obama is a moderate right winger in his policies. So far as Canada is concerned the Conservatives are moderate right wing and the Liberals centre left. Vote splitting in Canada usually occurs on the left with the NDP, Liberals, and Greens sharing the vote. There really aren't any viable right wing parties to pull votes away from the Conservatives. Fortunately, most Canadians simply have the good sense not to vote for them most of the time.
If you have a good understanding of right and left, (which most don't, and those who do don't let on) you would see that even the Republicans aren't right in a practical sense. Far left is total government control and on the far right is no government control. If you see how much control the governments have on the lives of citizens you may realize that we are pretty close on the spectrum to the US.
All of our, (and their) political parties are concerned with is power, how to achieve and maintain it. Their advertised ideological differences are what attracts voters to one side or the other, but for all intents and purposes they all have the same goal. If the party in power is not interested in relinquishing power to the people and maintains big government it is left wing. Many people equate Stalinist style socialism with the left and NAZI style fascism with the right, this is totally erroneous. Both are far left governments, it was Stalin who first obfuscated the terms in an attempt to distance his style from Hitler's while the only difference was that Stalin was an equal opportunity tyrant. The obfuscation, or lie, stuck. Tell a lie often enough and it becomes the truth. Though it is a generalization, it is the "progressives", or liberals who like to perpetuate this lie to equate conservatism with fascism, which in some cases is not far from the truth. Just as some liberals demand things totally illiberal, tyrannical in fact, which is why I dislike all encompassing labels. So we end up with qualifiers, "classical" liberals and conservatives, or other labels like libertarian, the list is long.
If you look at the legislation in place now that controls our lives, everything from bicycle helmet laws to firearms bans, it was promoted by "progressive" folks. Now if you think the Conservatives are right, just look at what they have coming down the pipe, they want to enact legislation that will allow police to randomly stop motorists for sobriety testing, a clear violation of our constitutional protection from unlawful search and seizure. More pandering to the "progressives", (sorry, needed the label).
An extreme right government doesn't exist because by definition it means no government control at all, contol is invariably handled by local thugs, much like Somalia, or early wild West US. A centrist government balances the rights and freedoms of its citizens, one person's freedom shouldn't infringe on the rights of another. A centrist government sets rules of fair play without trying to control all aspects of the lives of citizens. A centrist government is limited government with the people having the balance of power. It has been a long time since we have seen that. In fact, the original Reform Party is what is now the LIberal party. They were a party of the right, (or right of the conservatives at the time). They were against the ideal of the strong central government of Sir John A. The parties have switched sides, more or less, over the years.
We seem so concerned about the economy and want the government to control it, (which they really can't) but overlook all the freedoms we lose as the government controls what they can, us. We demand the government protect us, but who will protect us
from government? "Peace, order, and good government", Peace comes easily at a huge cost; freedom. With that comes order. Good government? China has that, just ask any of their commissars. Funny thing about democracy, people are so willing to collectively vote away their freedom. If we can't live as equals under freedom, we will live as equals under slavery.
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