each country chooses its own way of governing. In US, it is two parties and the rule that winner takes all basically ruled out the possibility/viability of a third party. In Canada, it is several parties and winner cannot take all. Why do not you complain in US it is two parties 独大.
I met Wuerkaixi in Hawaii in 1996. He came over from California with only 50 bucks in his pocket and his Taiwan girlfriend. His cousin was at EWC at that time. He was working for the dream of Turkistan. Wuerkaixi gave a talk at EWC. One question asked of him was:
Why did not you learn from hisotry? History shows the power comes from gunpowder and democracy is only possible after gunpower decides the ruling class.