Speaking of this, may I bring to your attention the situation of Québec?
Because, as we are approcahing the 60s, we are closing in on the OTL date of the start of the quiet revolution.
Crown Atomic altered the course of history a lot but can't change the fact that some five millions (maybe more with french emigrates? I have memories of demographic figures a couple hundred posts ago...) francophones are living in Québec and are most likely not very happy with their situation.
Even in OTL, the Québécois were subjected to censorship and –to a lesser degree than in Crown Atomic though– electoral control (which explain which Maurice Duplessis stayed in power 15 years). Don't get me wrong, Duplessis was not evil, he initiated some of the early megaprojects of the quiet revolution and contributed to build the Québécois government as we know it today, but his cultural legacy is... mitigate. And this is bad because that's exactly what people cared about these days.
Now, I don't know what
@cookfl have in mind for Québec but I think a total absence of dissent in the province would be a little bias. OTL, the quiet revolution marked the end of an area, the term
Canadien-Français fell out of use and the Québécois decided they were different from the other francophones of Canada. In CA, I could easily see this becoming a more nationalist movement, Québécois never cared much about the British Empire since the 1917 conscription crisis and when your only two choices on the ballot are either the Tories or the Imperials, this can't end well.
Duplessis is going to die in 1959 (September 7th 1959 in OTL, for CA that's up to the author) and the chances for the
Union Nationale to win the elections whitout him are very low (OTL they came back between 1966 and 1970 but the party died afterwards) and if Jean Lesage becomes Prime Minister, things are going to chance rapidly. Lesage is not a separatist, he often stated his love for Canada and never intended to cut the ties with Ottawa, but he's a reformer and will try to change the province. If Ottawa try to stop him and interferes in the provincial business, I don't think the Québécois will take it lightly... One should remember that an actual terrorist group was in activity during the 1960s in Québec and although in OTL the FLQ struggled to attract support, it could be different in TTL.
IMO, a POD in 1917 –the Kaiserreich one– is too late to avoid the quiet(?) revolution, to do so, one should go back to the Confederation or not much later. The 60s can't just go smooth for Québec, the society have to change, it is backward and almost feudal. Moreover, with their deal with the Duplessis administration, the BYT have linked themselves with the man considered by the intellectual elite in Québec as the responsible for all the problems of the province. They are stained, they cannot be part of the solution.