It is fair to say we don't need to look at the areas where isolation is good - areas like engineering both electrical and mechanical ( wont be explaining why).
In medicine patients can be isolated because they have a contagious disease - this would be understood to be good.
Other ways to isolate
a) Groups,organisations or countries
b) Something - ideas or problems
c) Oneself
d) A person or groups of people
Governments are currently telling people to isolate.Cut off from family,friends and society.
The good in this action can be argued about but the BAD can not - isolation has been proven to raise stress levels which can lower immunity thereby making people more likely to be attacked by the current virus. What are we not being told!
The song says something about loneliness but you don't have to be old to be lonely do you?