I only ask as after doing some genealogy I found that my French Canadian side came to the US due to a family member enlisting to fight in 1775 when the US invaded Canada. I am sure I am butchering the actual terminology but hopefully the period I am referring to is clear.
The family member who enlisted ended up getting promoted and ultimately was killed while still fighting in the revolution, which leads me to wonder what sort of consequences his family would have faced back home in Canada? If it helps, the family lived near Montreal. They also ended up leaving for the US a few decades later trying to claim the land they had been promised in the US for enlisting in the army.
There's always more to be said, but in the meantime you may find answers about the political climate in Quebec in the aftermath of the Conquest of New France and later, at the dawn of the revolution in this thread by u/enygma9753.
The situation in Quebec was complicated since the capture of Quebec. The British military and then civil administration soon realized that, with a potentially hostile population of some 70-80,000 French Catholics, it was more prudent to try to accommodate their new subjects than to oppress them. This became critical in the 1770's, with rising discontent in the Thirteen Colonies. The 1774 Quebec Act (one of the Intolerable Acts) enshrined in law the property, language and religious rights of French Canadians.
It should be noted that French Catholics in Quebec received treatment that was more generous than Catholics had elsewhere in the Empire -- including in Britain itself. The British and colonial merchant class resented this toleration of the "papist" faith.
The French were still leery of their British rulers, which Governor Carleton would soon discover in 1775 when he had difficulty recruiting local militia for the defence of Canada. But, the tolerance and accommodations granted to its French subjects (most of whom took the mandatory oath to the Crown) also ensured that French Canadians would remain neutral in 1775 when the Continental army invaded Canada.
Most French Canadians dismissed Patriot attempts to recruit them because they already had generous liberties guaranteed under British law, amd they trusted the mostly anti-Catholic Americans even less than the British. Quebec was under almost constant attack by Britain and its colonial militia in the preceding 150 years before British rule, so the majority of the populace was skeptical about the Patriots' vague offers of liberty.
Those French Canadians who enlisted in the Revolution would be deemed as breaking their oath to keep the King's peace, and even defying the will of the Catholic Church, which was onside with British authorities in Quebec. It would depend on how involved their relatives were in Patriot activities in the colony. It would be seditious to help the Patriots at that time, with the political and religious ruling class as pro-British and the local French population indifferent to rebellion and largely suspicious of the Patriot cause.