That 18% number is based on polls that may be kinda susp, but even if it were true a lot of what I’ve heard from the dumbass gallery has been:
“Cool, then our dollar would finally be equal to USD” and “It’ll be easier to get flights to the US and Disneyland” or “Then we can vote in a proper government they’re and fix things”
I doubt the appetite for such goes much past a lack of critical thinking into what the realities would be
This may be so but as we’ve seen in other contexts - e.g., Brexit and the last US election - these are exactly the people that can do incredible damage that can last generations.