I'm from a country with a reasonable voting system that allows more than two parties to exist. This allows more than two political idea clusters to oppose each

I'm from a country with a reasonable voting system that allows more than two parties to exist. This allows more than two political idea clusters to oppose each other. This might surprise US citizens, but the big parties here don't have polar opposite positions on every issue. Quite the opposite, but once the become similar a voter can actually choose smaller competing party without hurting his own position. It disturbs me how rarely US citizens criticize their FPTP voting system, even though I understand how hard it would be to get rid of it (only FPTP winners could get rid of it). But still it seems so dangerous, especially now where people more than ever can live their own media environment without common consensus. Anything but FPTP.