No. The US has a first past the post system that naturally forms two parties which in turn fuels further polarization. A rep runs in a district and it's winner take all. In theory (totally unrealistic in practice) you could have a single party win all the seats by achieving 51% in each individual election. The other 49% of voters (ie approximately half of the country) wouldn't receive a single representative.

Proportional representation has advantages but comes with its own complexities. However there are also other voting systems (such as ranked) that offer different tradeoffs independent of proportional representation. There are a lot of options out there and pretty much all of them would be more functional than what we use in the US.

About the only thing our system has going for it is that someone with an IQ well below 100 can still fully understand and even help audit it. (Or at least that used to be the case before electronic voting machines started appearing.)