Or: If proportional representation is so wonderful, why doesn’t everybody use it?
The answer, of course, is that (nearly) everybody does. Below is a list of countries that use PR for national elections (source: Wikipedia). If we included countries that use PR for at least some local elections, the list would be considerably longer, and would include the United States.
The single biggest reason that the US doesn’t use PR nationally is that the US was invented a century before proportional representation (see the PR Timeline). Having grown up with single-member congressional districts, we find it hard to envision alternatives, and harder yet to actually make a change.
Here in the US, it’s perhaps most practical to introduce PR for local elections, get used to the idea, and move on to state and eventually federal elections. And before that happens, we need education on the subject.
That’s what the Proportional Representation Foundation is all about.
Democratic Republic of the Congo
São Tomé and Príncipe
Wallis and Futuna