Complex sentence: In Quebec, some people, including some within the nationalist and sovereignty movements, harbour feelings of resentment towards English Canada or the Canadian federation in general, even though the majority of the government's main political leaders have been from Quebec or have ancestry there.
Split into simpler sentences: In Quebec, some people, including some within the nationalist and sovereignty movements, harbour feelings of resentment towards English Canada or the Canadian federation in general. They still harbour resentment even though the majority of the government's main political leaders have been from Quebec or have ancestry there.