Australia (25M), China (1.39B), Japan (126M), New Zealand (5M), South Korea (52M), Taiwan (24M), Thailand (69M), and Vietnam (96M) + Atlantic Canada’s 4 provinces ((NS, NB, NFLD, PEI, 2.4M) have diverse geography, population size and density, as well as degrees of democratic norms. Some are islands, but others share sizable borders. Several have used a cordon sanitaire (i.e. MAKE YOUR REGION AN ISLAND even if it isn’t one) to create an “island”.
Instead of focusing attention on the few individuals resistant to social action because of shortsightedness or selfishness, recognize that the vast majority do the right thing if given clear guidance and support, which is what matters for success.