I don't think the two-party system necessarily leads to strong polarization. The US has had mostly two parties for a very long time and yet polarization has ebb

I don't think the two-party system necessarily leads to strong polarization. The US has had mostly two parties for a very long time and yet polarization has ebbed and flowed. I highly suggest reading the following link about how transparency actually might be causing the polarization, not the voting structure: https://congressionalresearch.org/PartisanshipCitations.html https://congressionalresearch.org/PartisanshipCitations.html