The Australian minimum wage is AU$19.49.
A burger and fries doesn't cost you $20.
The cost for this meal appears to be US$5.99 in the US - quite similar.
That's not close to $15 (or $20) by any stretch of the imagination.
Either way, I think that the assertion of “this thing worked over there so it will work the same way here” is overly optimistic. But ultimately I don’t much care - I rarely eat there, so if McDonald’s got very expensive or went out of business, it wouldn’t have much impact on my life. If they want to unionize, more power to them.
I’m not a fan of unions overall. I recognize that they’ve done some good things, but the people I’ve known who were in unions or worked in union shops don’t describe places that I’d want to work in.
If unionization and a near doubling in minimum wage makes a hamburger, fries, and Coke cost $0.71 more, I think I can accept that.
Or are you just arguing that the franchisees are also getting rich by paying people as little as possible?
Sounds like a recipe for business closures en masse and ballooning unemployment, which I don't think is something anyone wants.
He cited this as a reason to not give his employees health insurance