There are several countries that have FPTP voting, but they’re not as entrenched at everywhere into two parties the way the US is. The UK, for example, has several regions where one of the two major parties is mostly fighting against a regional party, and the other major party has little to no voting base there.
Not only that, but several southern states have used instant runoff voting since the end of Reconstruction (or not long after). If you look at the makeup of their legislatures over the past 100+ years, you’ll see that they are just as filled with Democrats and Republicans as everywhere else.
There are several countries that have FPTP voting, but they’re not as entrenched at everywhere into two parties the way the US is. The UK, for example, has several regions where one of the two major parties is mostly fighting against a regional party, and the other major party has little to no voting base there.
Not only that, but several southern states have used instant runoff voting since the end of Reconstruction (or not long after). If you look at the makeup of their legislatures over the past 100+ years, you’ll see that they are just as filled with Democrats and Republicans as everywhere else.
Point is, FPTP is not the only thing at play.