You must be kidding. Wolves don’t know borders. They’ve traveled all over the continent. Same with Mexican Gray wolves, or any other critter for that matter. My sister has a Coatamundi in the central AZ. Now if Bengal tigers can swim an ocean....
The wolves aren’t going to eat the people. Not even going to address your fears because the line of thought is just way too silly.
As the article at the top of this thread pointed out, the Canadian grey wolves are killing for fun, not to eat. In their natural habitat in the artic, large packs of wolves hunt together chasing very large herds of caribou.
The wolves that were indigenous to the US Rockies hunted in pairs mostly, not in packs.