There was actually another, smaller, Georgian Bay Ship Canal proposed to run between Toronto and Wasaga Beach (where I live) via the Nottawasaga and Humber Rivers. Had that been built, Toronto would have an awesome boating canal today and areas like Weston and Downsview would be very wealthy today.
Another place that would be a good place for an alternative to Toronto would be Brighton , situated near Pres'quille Bay, which is similar to the Toronto Islands. That would make an excellent harbor.
There likely would still be a line across the ATL "Canadian" prairies, as there would be a need for transportation links between the towns, although it wouldn't continue into the Rockies or the shield.
I wonder why SA never became white-majority, and the rest of colonized Africa never got white-settled at all? Diseases? And with regards to the slave trade; why just Africans? Why not the indigenous peoples of other European-colonized continents?
As part of the US, they'd be no reason to keep the French speakers in Quebec loyal to the British anyways, so the unification never happens and Quebec becomes filled with American anglos.
I always wonder if the concept of the personal union/Commonwealth is a result of the AR and Britain wanting to keep her other colonies loyal afterward?
French survived in Canada because the British wanted to keep them loyal rather than potentially joining the ARW, so they sweetened the pot. This was not an issue with the Afrikaners (or the American cases of the French in Louisiana or the conquered Mexican territory).
Imagine motorized road vehicles were developed before rail transport? I know that good roads are harder to build that tracks, and that steam-powered cars are less practical than internal combustion engines, but just suppose someone thought road vehicles were more useful due to their flexibility...