No. look at China and Korea. It can be well controlled.
Business has been reopened with little new cases.
South Korea is one of the poster children for "manage to stop the virus entering your country". They have been aggressively responding to each and every case because they are able to identify each case that enters the country. Even then, they are still not fully "reopened".
I agree that neither has reached the level of "destroying international travel and your economy", but let's not understate the impact that their measures are having either.