One view of life is that life is one big externality: just about everything that someone does affects someone else either positively or negatively.

One view of life is that life is one big externality: just about everything that someone does affects someone else either positively or negatively. To permit government to deal with externality problems is to permit government to tamper with everything in life. No clear line divides those externalities government should become involved in and those it should not. Do you support this position? Why? Or, Why Not?