As you may know, Hawaii was able to keep extremely low numbers during covid. They knew from experience how to do this.
(Wikipedia) What percentage of Hawaiians died of disease after Cook’s first arrival in Hawaii?
It is estimated that in the first two years after Cook’s arrival on the islands, 1 in 17 Natives died, resulting in a Hawaiian population decline of nearly 50% within the first 20 years.
This is because Hawaiians didn’t have any of the diseases that the explorers (and later the missionaries) brought. They lived quite old and healthy lives. Then came the measles, mumps, whooping cough, venarial diseases. (Smithsonian.com) foreign ships brought epidemics in waves: cholera (1804), influenza (1820s), mumps (1839), measles and whooping cough (1848-9) and smallpox (1853).
So fast forward to COVID. We closed the ports and the airports. We wore masks (actually many Japanese visitors always wore masks when visiting away from home). By eliminating new visitors and quarantining arrivals, we were quite lucky. Unfortuantely the mainland U.S. has borders where people keep crossing (and some illegally sneak in and can bring drugs and illnesses).
These epidemics and pandemics happen more now because of the massive numbers of people crossing country borders world-wide. Just one person can be a carrier of an illness and spread it to a country.
Case in point. We here are far removed from the world being thousands of mies from any land mass. We grow coffee but are the only country which imports unroasted coffee and trees from other countries. The imports are SUPPOSED to be fumigated. However someone imported some coffee plants which were not fumigated. They had the coffee-borer beetle in them. Up until then Hawaii was immune from the bug and issues. Those beetles thrived here and took out much crop. (Star Advertiser) CBB beetles are the most economically devastating coffee pest in the world, and in Hawaii are established on Hawaii island, Maui and Oahu. They were first discovered on Big Island in 2010, on Oahu in 2014 and on Maui in 2016, and cost the state over $25.7 million in coffee sales between 2011 and 2013.
So there is a divide. Being isolated is the best action. Opening the borders and letting any and all in is the opposite solution. We here have import restrictions and do our best to protect the citizens. You cannot just ship a dog here withoutr a complete protocol because we don’t have rabies here.
Keeping watch, having protection protocols and using common sense are the three things I believe is the middle ground you ask about.