As an American living in Switzerland, this is not a fair comparison. The Swiss strategy involves mandatory service (with the backing of the government), short and long term preparations against an outside invading force (with the backing of the government), highly regulated gun ownership (with the backing of the government). It's always wielded with the backing of the government against an outside force.

In stark contrast, the U.S. mindset around gun ownership has always been about wielding the weapons against the government itself. Instead, what this effectively means is that this will be an easily hijacked ideal if, in our politically charged era, portions of the government are viewed as "illegitimate" and one part of the government backs a coup with gun-toting civilians against "the government" (the part not liked).