Solipsism is the fact (as much as any other so called fact), that we create our dreams not only at night when we sleep, but also in the day. As well as before we are "born," and after we so call "die." The dreams in the day only appear more "rational." It is not that "we are the only thing that exists," but that our consciousness is all that exists. Our consciousness is just our individual reflection of the consciousness of the entire universe, (what is commonly called "God." ) It takes time to perceive everything (time being an illusion), except for our consciousness which is instantaneous. This means that what we perceive is also us. Governments, as well as organized religions, military, industrial, and educational systems conspire, and know this fact, but put out the Descartian, dualistic view that there is an external foreign "enemy". The latter view is put out for their advantage which everyone must follow or be marginalized, imprisoned, or eliminated. This view works to the disadvantage of everyone not following the Church, State, Military, Industrial, Educational Crime-Pseudo crime fighting system.
If this view of solipsism were accepted by the masses, as opposed to the "current commonly accepted dualistic view," we would work together for all of US. instead of being divided and conquered as we are now, by the age old classical military technique. We would work 6 hours per year for a middle- class existence as described by Buckminster Fuller, inventer of the geodesic dome.