What are some of the benefits of a country taking an isolationist what could be so negative

Pros: A county with an isolationist view would be able to remain out of foreign conflicts, international disputes, and remain entirely sovereign. A perfect example is Switzerland.

Cons: A nation with an isolationist view can miss out on economy boosting trade deals and agreements. Other nations bordering them may look at their neighbor as unreliable if a major power were to attack them, and may not garner any support for internal or external issues. An example of a county like this is pre ww2 Finland.

Pros: the country will stay out of conflict and neutral; protecting their own country
Con: allies could get mad/upset they’re not sticking up for them or in their battle when they give them resources and help them