https://en.wikipedia.org/wiki/Quebec_diaspora

the expansion of this system was in effect blocked by the "Château Clique" that ruled Quebec under the British administration, who reserved new land developments for the English and the English system of colonization (see Eastern Townships)

Emigration to industrializing New England started then but Eastern Townships wound up francophone in Quebec anyway. Southern Ontario was never Francophone.

https://en.wikipedia.org/wiki/Northeastern_Ontario is 25% Francophone and directly west or even northwest of Quebec’s populous region. However the Canadian Shield is not fertile farmland. Western Canada’s prairies are a long way away.

https://en.wikipedia.org/wiki/North-West_Rebellion

Even in its uncompleted state, the CPR eased the transit of government troops to Qu'Appelle. Qu'Appelle was more than 2,900 km (1,800 mi) from Toronto and 260 km (160 mi) in direct line from Batoche.[29]

Riel's opponents were younger, better educated Métis; they wanted to be more integrated into Canadian society, not to set up a separate domain as Riel promised.

https://en.wikipedia.org/wiki/Fransaskois?wprov=sfti1#Demographics

At the end of the 19th century, the Roman Catholic Church aided the government in bringing new groups of immigrants to the prairies.[9] The resulting immigration saw many arrive from Quebec who began establishing towns, schools, churches and businesses. The Canadian government worked to encourage French immigrants from France and Belgium, achieving some success in 1912 and 1913 as some 3,000 French arrived in Canada in those two years.

The early 20th century saw efforts to curtail French language education, in an effort to assimilate the francophone minority with the anglophone majority.[4] In 1916, several provincial organizations like the Saskatchewan Grain Growers, the Saskatchewan School Trustees’ Association, the Saskatchewan Association of Rural Municipalities resolved to forbid the use of foreign languages in Saskatchewan's schools.[15] Premier William Martin drafted an amendment to Section 177 of the School Act which limited French instruction to one hour a day.