The British immigrants were taking jobs that would have normally gone to the French.
The British immigrants occasionally brought diseases with them from Europe, diseases like Malaria. Which the French did not want to deal with.
With growing knowledge of the political system in the US, due to increased technology, the French realized that the political system they were part of was not the only way.
Both the British government and the Catholic church held great control over how the French people lived.
One of the main leaders of the reform movement in Lower Canada was Louis Joseph Papineau. He was a charismatic lawyer who was one of the main voices speaking for the people and their rights. In 1834, the assembly he was leading (the more radical group of reformers, the Patriotes) demanded to have all the same rights the British Parliament members had.
Not everyone in Lower Canada despised the British. A group called Chateau Clique were wealthy families of Lower Canada which held power. They were the Lower Canadians which wanted the British way of life, for most of them were British themselves.
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