What if all of English America joined the American Revolution of 1776?
So basically all the territories that were under the English crown in the Americas.
Canada, Bermuda, Bahamas, Florida, Jamaica, Antigua, St Kitts and Nevis, etc...
And not just joined the revolution but deliberately sent delegates to the continental meetings, overthrow their local governors, etc..
Basically the war is between the crown and all their English colonies in North America and the Caribbean.