That's a weird comparison, I guess you say that because California's population (39 million) is close to that of Canada's (36.3 million)? No doubt California is diverse, and by no means homogenous, but Canada... is physically huge, and relatively speaking, very sparsely populated. This naturally leads to more diversity within an already "small" population. To develop a business with a target market of "all of California" would be much easier than to develop one with a target market of "all of Canada."