Two-party systems are not most common in French-speaking countries. In fact, the vast majority of French-speaking countries have multi-party systems.
Here's why:
* France itself is a multi-party system. While there are two dominant parties (the Republicans and the Socialists), many smaller parties hold seats in Parliament and influence the political landscape.
* Other French-speaking countries have diverse political landscapes. Canada, Belgium, Switzerland, and many African nations with French as an official language all have multi-party systems.
* Two-party systems are more common in Anglo-American countries. The United States and the United Kingdom are prime examples.
While French-speaking countries may have some historical or cultural influences that have shaped their political systems, the idea that they are predominantly two-party systems is a misconception.