Would be nice if it was just the National Divorce of Red States from Blue. Three Canadian Provinces would join if asked, then the Union of North America thing would actually happen. There's some flags already considered for that though, here's the most common example
Had not heard about BC, just the other three and possible Yukon
Other than zoos and that sanctuary in Florida, no lions.
Would absolutely NOT do any kind of striping around the border, That is the same as that gold fringe around the American flag. Stuff like that is from medieval times and in heraldry known as a "badge." That indicated it had been captured or is subservient to another